Which formula is used to calculate the standard deviation of sample data?
2.
X, - x
+ X2-X
+ ... + X-X
(1928)
s=1
n-1
(x1 - x)2 + (x2-x) +...+(XN-)?
2
11
N
w
(x1 - x)+ (x2-x)2 +...+(x+4) ?
N
2
Xq- x
-3)
+ X2-X
+
+ X
S=
n-1
Answers
Answer:
The first option from the picture
Step-by-step explanation:
In the picture attached, the question is shown.
In the first option:
s is the standard deviation\( x_1, x_2, \dots, x_n \) are the members of the sample\( \bar{x} \) is the sample meann is the number of members in the sample
The formula for calculating the standard deviation of sample data is expressed as \(\sigma=\sqrt{\frac{\sum(x_1-\overline x)^2+(x_2-\overline x)^2+...(x_n-\overline x)^2)}{N} }\)
What is a standard deviation?The standard deviation is a measure of the amount of variation or dispersion of a set of values.
A lower value of the standard deviation shows that value is close to the mean otherwise it is far from the mean
The formula for calculating the standard deviation of sample data is expressed as:
\(\sigma=\sqrt{\frac{\sum(x_1-\overline x)^2}{N} }\)
Assume we have the following data x1, x2, ....xn, the standard deviation will be given as:
\(\sigma=\sqrt{\frac{\sum(x_1-\overline x)^2+(x_2-\overline x)^2+...(x_n-\overline x)^2)}{N} }\)
Learn more on standard deviation here: https://brainly.com/question/475676
Related Questions
-3,-2,0,3x
16,11,1,-14
is this a fuction
yes or no
is this porpotnial
yes or no.
how do you know
Answers
Answer:
Yes
Step-by-step explanation:
Its because nun of the numbers repeat so therefore it is porpotnial
The scale of a map is 1¼ inch = 35 miles. If the distance from two points are 140 miles apart, how far are they away on the map?
Answers
Answer:
5 inches
Step-by-step explanation:
140 / 35 = 4 x 1.25 = 5 inches
what is 0/0+1000000000000/3.333333333333. Its unedentified but just take the free 100 points
Answers
Answer:
okay
Step-by-step explanation:
thanks for the points btw it's unedentified
Answer: The sun
Step-by-step explanation:
0/0=yellow
so you divide pi and add the area of green so thanks
Please Help Explain This To Me!!!! I Have A Test On This Tomorrow!!! 20 POINTS!!! I WILL GIVE THE BRAINIEST!!!!
Answers
Answer:
45/8
Step-by-step explanation:
You divide 3 3/4 by 1 1/2
First turn the mixed numbers into improper fractions.
Multiply the whole number by the denominator then add the numerator. Keep the denominator the same.
3 3/4:
3 x 4 = 12
12+3
= 15/4
1 1/2 :
1 x 2= 2
2+1
= 3/2
now you're dividing 15/4 by 3/2
My teacher always taught me KFC:
Keep, change flip
Keep:
Keep the first fraction don't change it. 15/4 stays the same.
Change:
Change the division sign to multiplication.
Flip:
Flip the last fraction to its reciprocal.
In this case instead of it being 3/2, it will be 2/3
Next
Multiply straight across
15/4 x 2/3
15 x 2 = 30
4 x 3 = 12
30/12
Simplified would be 5/2 as an improper fraction
or
2 1/3 as a mixed number
I am so sorry but I don't know how to explain the 2nd question without it making any sense, I hope someone else can for you! I hope I helped with the first one!
Answer:
Step-by-step explanation:
15/4 x 2/3
15 x 2 = 30
4 x 3 = 12
30/12
Simplified would be 5/2 as an improper fraction
or
2 1/3 as a mixed number
Please help me with this
Answers
NEED HELP WITH MATHS ! I'll give the brainlest !! (Reposting cuz of 'hgdsjhdk' answer).
Answers
Answer:
what do you need help with specifically, im not going to do all of that for you
Step-by-step explanation:
(explanation please so i can understand)
Triangle JKL has vertices at J(−1, −5), K(−2, −2), and L(2, −4). Determine the translation direction and the number of units of the image of triangle JKL if vertex J′ is at (−1, −8).
3 units down
3 units up
7 units to the right
7 units to the left
Answers
Answer:
3 units down
Step-by-step explanation:
J(-1, -5) → J'(-1, -8)
The x coordinate of the vertex J is -1 and does not change in J' (it is still -1)
The y coordinate of J is -5, and for J' is -8. This means the translation direction of 3 units down. (-8- -5 = -3)
What is the product of −17 • −5 • −12?
1,020
660
−660
−1,020
(Worth 20 points)
Answers
Answer:
-1020
Step-by-step explanation:
Because . is also called in mathematics x so -17 x -5 x -12 it will give you -1020
An insurance agent earns a base salary of $28,000, a commission of 2% of sales, and receives an additional fee of $9 for each sale of an investment policy. The agent had total sales of $75,000 and 6 investment policies this month. Find the commission and fees earned. (There should be 2 separate answers)
Answers
The total earning of insurance agent with the commission and fees is $29554.
Given that, an insurance agent earns a base salary of $28,000.
What is the investment?Investment definition is an asset acquired or invested in to build wealth and save money from the hard earned income or appreciation. Investment meaning is primarily to obtain an additional source of income or gain profit from the investment over a specific period of time.
A commission of 2% of sales
The agent had total sales of $75,000
Commission= 2% of 75,000
= 0.02×75,000
= $1500
Fees earned on investment policies =6×9
= $54
Total earning =28000+1500+54
= $29554
Therefore, the total earning of insurance agent with the commission and fees is $29554.
Learn more about the investment here:
https://brainly.com/question/17252319.
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PLEASE HELP AND REAL ANSWERS
A deck of cards contains 120 cards, 24 of each of five different colors. You shuffle the deck and deal the cards into 40 piles with 3 cards in each pile. Show that there will be at least two piles with the same distribution of colors.
Answers
Answer:
8
Step-by-step explanation:
Can someone answer this please?????
Answers
Answer: y=-7
Step-by-step explanation:
solve 5x+2y =-4 for x
Add -2y to both sides
divide both sides by five
substitue -2/5y +-4/5 for x in 3X +10 Y equals -64
44/5 + -12/5 equals -64
Simply both sides
add 12/5 to both sides
Divided by 44/5
y= -7
Answer:
Hence The Value of Y=-2 at the intersecting point
Step-by-step explanation:
Given the equation
5x+2y=-4 and 3x+10y=-64
are intersected at X=2 to find the value of y
solution the equation 5x+2y=-4 and 3x+10y=-64
are intersect at x=2 means x=2 satisfied both equations so x=2 put in the
1st equation
5 x 2+2y=-4
2y=-4 -1 0= -14
y= -7
Can you guys help me? The question is in the image
Answers
Factor the expression using the GCF.
Answers
Answer:
Step-by-step explanation:
In this problem, both 7 and 14 can be divided by 1 and 7, meaning these are the factors. This tells us that 7 is the Greatest Common Factor, as 7 is greater than 1.
To factor the expression, we take 7 out of both numbers and put it outside the expression. To do this, we have to divide both numbers by 7. Doing this gives us \(7(\frac{7}{7} +\frac{14}{7} )\), which simplifies to \(7(1 + 2)\).
Answer: 21
Step-by-step explanation:
because I had that as a question in my math book
Question 7(Multiple Choice Worth 5 points)
(01.02 MC)
If (92)P=98, what is the value of p?
02
03
04
06
Answers
Answer:
4, Third option
Step-by-step explanation:
When you get 9^8 the answer is 43046721. So when raising a power to a power, the products should equal 8. Using simple math, we can determine that 4x2=8. To check our work you can calculate (9^2)^4, which equals 43046721. Now we can now for sure that this answer is correct. Hope this helps!
(a^b)^c = a^b(c)
2(x) = 8
X=4
(9^2)^4 = 9^8
Which expression is equivalent to 3m÷4n⋅5p?
3m÷5p⋅4n, 3m÷5p⋅4n, 3m⋅5p÷4n, or 4n÷3m⋅5p?
Answers
Answer:
Its (C)
Step-by-step explanation:
\(\frac{3}{4}\) * 5 = \(\frac{15}{4}\)
Only answer that is equivalent is C
I swear if you answer this correctly, you saved my life.
Answers
Answer:
\( \frac{5.5}{0.5} = 11 \\ \\ 5) - 2.5 \times 1 \times \frac{1}{4} = - \frac{25}{10} \times \frac{5}{4 \\ } \\ = - \frac{25 \times 5}{10 \times 4} = - \frac{25}{8} = - 3 \times \frac{1}{8} \)
5. 3.125
6. 0.7(rounded)
Multiply the pairs of numbers and match them with their products. Tiles (-5)(4.2) (-7)(-3) (4) (5) (2.5)(-9) Pairs 22.5 21 -22.5 -21 111
Answers
Here are the pairs matched with their products:
- (-5)(4.2) matches with -21
- (-7)(-3) matches with 21
- (2.5)(-9) matches with -22.5
Pairs (4) and (5) do not have corresponding products in the given options.
(-5)(4.2) = -21
(-7)(-3) = 21
(4)(5) = 20
(2.5)(-9) = -22.5
So, the pairs of numbers and their products are as follows:
(-5)(4.2) = -21 matches with -21.
(-7)(-3) = 21 matches with 21.
(4)(5) = 20 matches with 20.
(2.5)(-9) = -22.5 matches with -22.5.
I hope this helps!
20 points to whoever answers this right!!
Answers
352-
96
48
96
48
We will end up with 64
So divide that by 2 because there is 2 rectangles.
So then you’re left with an area of 32 for each rectangle!
Then you will do 42/4 (because one of the sides is 4) so you end up with 10.5
So then, that’s your missing side:
10.5 ft
Find the quotient. 5 1/4 - 15
a. 7/20
b. 78 3/4
c. 2 6/7
d. 3 1/4
Answers
I believe the question you are asking is what 5 1/4 (otherwise known as 5.25) divided into 15 is.
Simply put, your question is 15 divided by 5.25 (or 5 1/4)
To solve this we can make the fraction 5 1/4 into an improper fraction. This makes the fraction to consist of a numerator and a denominator and no whole numbers. Converting 5 wholes into fourths would mean 5 times 4 which is 20. Therefore 5 converted into 1/4 ‘s is 20 1/4’s. This combined with the other 1/4 in the fraction 5 1/4 makes the improper fraction 21/4.
When you divide fractions you switch the numerator and denominator of the fraction on one side (usually the right side although it doesn’t matter as long as you only switch one fraction of the two) and multiply. 15 times now 4/21 is 60/21.
To simplify this you can divide the numerator and denominator by a common factor. We can start with 3, simplifying the fraction to 20/7. Now as you may notice in the answer choices they are all mixed numbers, consisting of a whole number as well as the numerator and denominator. 20/7 as a mixed number is 2 6/7 as you can have 2 times 7 (14) and then have 6 left so you have 2 wholes and 6/7 away from another whole. This makes C the answer
At a bus station, The buses leaving for Lewes and eastbourne both leave together at 8 a.m. following this, the bus to Lewes leaves every 20 minutes and the bus to eastbourne leaves every 25 minutes. At what time will the buses next be leaving at the station at the same time?
2. Trevor has a box with four cards in it. Each card has a different number on it. Trevor picks three cards, multiplies the numbers together and then places them back into the the box. He repeats this and records his results below.
first: 360 second: 280 third: 315
Give convincing reasons for what the four different numbers on the cards could be.
Im being lazy and I have a huge and important test tommorow so I don't have time to do this and solve it. pls help :(((
Answers
Answer:
I think maybe 10 am
Step-by-step explanation:
so first off what you want to do is do 20, 40,60 1:20 1:40 or however you want to write it until the numbers are the same 10 am might not be correct but that's what I got for doing the question in this way
What are the first two steps of drawing a triangle that has all side lengths equal to 12 centimeters?
Select from the drop-down menus to correctly complete the statements.
Draw a segment (6, 12, 24) centimeters long. Then from one endpoint, draw a (30, 60, 90) ° angle.
Answers
Answer:
12
60
Step-by-step explanation:
You pick a card at random. 6 7 8 9 What is P(divisor of 70)? Write your answer as a percentage. %
Answers
Answer:
Step-by-step explanation:
HELP NEEDED,THANK YOU find all real zeros and complex of each function f(x)=x(4x-6)(x+1)(3x+5).SHOW WORK!!!
Answers
Answer:
x=0, 3/2, -1, -5/3
Step-by-step explanation:
The x-axis interception points of x(4x-6)(x+1)(3x+5): (0, 0), (3/2, 0), (-1, 0), (-5/3, 0)
The y-axis interception points of x(4x-6)(x+1)(3x+5): (0,0)
So the answer is 0, 3/2, -1, and -5/3.
Snow is falling steadily in Syracuse, New York. After 2 hours, 4 inches of snow has fallen.
Complete the table and answer the questions.
Time (hours) Snow (Inches)
2/2
1
1
2
2 4
6.5
x
Answers
Answer:
all of the abpve
Step-by-step explanation:
Given the graph of f(x) = 3x + 2 and the graph of g(x) = 10(3x+2), how does the graph of g(x) compare to f(x)?
the graph of g(x) shifts 10 units down
The graph of g(x) shifts 10 units to the left
the graph of g(x) is less steep, or has a vertical shrink
the graph of g(x) is steeper or has a vertical stretch
Answers
Answer:D
Step-by-step explanation:
Explanations
Evaluate. Write your answer as a decimal.
6.59+(−7.8)−(−2.41)=
Answers
Answer:
1,2
Step-by-step explanation:
6,59-7,8+2,41=1,2
On evaluating the decimal expression given by →
6.59 + (− 7.8) − ( − 2.41), we get 1.2
What are decimal numbers?
A decimal is a number that consists of a whole and a fractional part. For example - 9.3, 5.4, 9.8 etc.
Given is the following expression -
6.59 + (− 7.8) − ( − 2.41)
The given decimal expression is -
6.59 + (− 7.8) − ( − 2.41)
Simplifying it -
6.59 - 7.8 + 2.41
6.59 - 5.39
1.2
Therefore, on evaluating the decimal expression given by →
6.59 + (− 7.8) − ( − 2.41), we get 1.2.
To solve more questions on Evaluating expressions, visit the link below-
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Which list orders the numbers from least to greatest?
Negative 2.4, negative 1.5, negative 2 and one-fourth, negative 3, negative 1 and one-eighth
A number line going from negative 4 to positive 4.
Negative 1 and one-eighth, negative 1.5, negative 2 and one-fourth, negative 2.4, negative 3
Negative 3, negative 2.4, negative 2 and one-fourth, negative 1.5, negative 1 and one-eighth
Negative 3, negative 2 and one-fourth, negative 2.4, negative 1 and one-eighth, negative 1.5
Negative 1.5, negative 1 and one-eighth, negative 2.4, negative 2 and one-fourth, negative 3
Answers
Negative 3, negative 2.4, negative 1.5, negative 2 and one-fourth, negative 1 and one-eighth
Hope my answer helps you✌️
I need help pls it’s hard to me
Answers
Answer:
6.3
Step-by-step explanation:
count your way qlong the graph along the bottom and up ,,,, along the cirador and up the stairs
What did one Poppy seed say to the other?
Answers
Determine how much emily and her friends will earn if they sell 3, 5, and 7 cups of lemonade. Explain how you solved. You may use the table below as a tool to help you answer the question but must also include a written response.
Help me ASAP please
Answers
Answer:
3 cups is 6 dollars
5 is 10 dollars
and 7 is 14 dollars
Step-by-step explanation:
If one cup is equal to a worth of 2 dollars
than 2 cups would be 4 dollars
and 3 cups 6 dollars
and so on... to get the price, the amount of cups is just multiplied by 2
Answer:
3 cups = $6
5 cups = $10
and 7 cups = $14
Step-by-step explanation: