Mathematics High School

Find the sample variance for the data 9,12,9,14,6. Round the answer to one decimal place. Sample variance

Answers

Answer 1

Answer:

9.5

Step-by-step explanation:

Find the sample variance for the data 9,12,9,14,6. Round the answer to one decimal place. Sample variance.

Step 1

We find the Mean of the numbers

Mean = Sum of terms/ Number of terms

Mean = 9+12+9+14+6/5

= 50/5

= 10

Step 2

We find the sample variance

Formula =

(x - Mean)²/n - 1

n = 5

= (9 - 10)²+(12 -10)²+(9- 10)²+(14-10)²+(6-10)²/5 - 1

= 1+ 4+ 1+ 16+16/5 - 1

= 38/5 - 1

= 38/4

= 9.5

Therefore, Sample variance = 9.5

Related Questions

find the area

length=x+10 width=2x+5

explain/show your steps

Answers

2x^2 + 25x + 50 not sure about the steps

A spotlight is mounted on a wall 9.8 feet above a security desk in an office building. It is used to light an entrance door 14.5 feet from the desk. To the nearest degree, what is the angle of depression from the spotlight to the entrance door?

Answers

to be honest i think your answer is 51°

SOMEONE PLS HELP I HAVE LIKE A MINUTE LEFT!!!

Answers

Answer:

C

Step-by-step explanation:

I'll explain if you need but i'm trying to answer quick for you

Answer:

C

Step-by-step explanation:

3500(1.04)^15

6,303

so in 15 years it will be over 6,000 dollars in the account

Which solid has the net shown?
A. Triangular pyramid
B. Square pyramid
C. Rectangular prism
D. Triangular prism

Answers

Answer:

D

Step-by-step explanation:

29,58,116,... find the 71st term

Answers

Answer:

sorry it doesn't make sense to me either but here is a link to another one of the 71st things hopefully it helps :)

Step-by-step explanation:

https://brainly.com/question/15779922

(WILL GIVE BRAINLIST) The number of phone calls received by the complaint department of a small company over a five day period is as follows:
28, 26, 33, 41, 47
Find the mean deviation for this data.
Select one:
8.9
7.2
7.9
62.8

Answers

Answer:

im not shure which one it is

Step-by-step explanation:

Kim's baby sister weighed 9 pounds when she was born. How many ounces are in 9 pounds?

Answers

144 ounces
Explanation: 1 pound is 16 ounces 16x9=144

The school band gets $5 for each T-Shirt they sell at a fundraiser. They have a goal of raising $150. If $45 has been raised do far, how many more T-Shirts do they have to sell to reach or exceed the goal?

Answers

$45 ÷ 5 = 9 (T-shirts sold so far)
$150 ÷ 5 = 30 (t-shirts they want to sell in order to have a goal of $150)
30-9= 21 more t-shirts
Ans: 21

What is the product of 8x²y² and 9xy³ ?​

Answers

Answer:

72x^3y^5

Step-by-step explanation:

8x²y² x 9xy³

72x^3y^5

just help me again for 2 times

Answers

Answer:

A. 86.7

first, the base. length x width.

it's square, so

5.1 x 5.1= 26.01

then the sides. formula for a triangle is base times height divided by 2.

5.1 x 5.95= 30.345 divided by 2 is 15.1725

there are 4 sides, so multiply times 4

4 x 15.1725= 60.69

now, add the base to the sides

26.01 + 60.69= 86.7

If x = 64, what is the value of x(x - 6)?

Answers

Answer:

64(64-6) = 3712

Step-by-step explanation:

64(64 -6)

64-6 = 58

64(58) = 3712

c) Jasper and Emma are training for a marathon. Jasper runs 6 kilometers at a
time while Emma prefers to run in blocks of 3 kilometers. At the end of a
month, they realize that they have run same total number of kilometers. What
is the smallest number of kilometers that each must have run?

Answers

Answer:

The smallest number of kilometers that each must have ran is 6 km

Step-by-step explanation:

The distance Jasper prefers to run at a time = 6 km

The distance Emma prefers to run at a time = 3 km

The distance ran by Jasper at month end = The distance ran by Emma at the end of the month

The smallest number of kilometers that each must have ran is given by the lowest common multiple, LCM of 6 and 3 as follows;

The multiples of 6 are;

6 × 1 = 6, 6 × 2 = 12...

The multiples of 2 are;

3 × 1 = 3, 3 × 2 = 6...

∴ The LCM of which = 6

Therefore, the smallest number of kilometers that each must have ran = 6 km

Booker earned $1,200 over
the summer. He invested the money in
stocks. To his surprise, the stocks increased
in value to $1,335 in only 9 months. Find
the simple interest rate for the investment.

Answers

Answer:

15%

Step-by-step explanation:

1335-1200=135

9 months=9/12

135=1200 x r x 9/12

135=900r

divide each by 900

135/900       900r/900

0.15=r

0.15=15%

A cube has a volume of 64. What is the side length of one side
#15

Answers

Answer:

4

Step-by-step explanation:

volume is equal to a x a x a

This means that [tex]a^{3}[/tex] = V

Therefore, a = cube root of V, which is 4

It would be 4.

Using the formula
V=a3
Solving fora
a=V⅓=64⅓≈4

A color printer prints 25 pages in 8 minutes.
How many pages does it print per minute?

(round to the nearest hundredth)

Answers

Answer: 0.13

Step-by-step explanation:

Please please help please please ASAP please I'm begging you please I have 10 minutes please y'all help please any ACE that can help please

Answers

Answer:

SQ

Step-by-step explanation:

NL:SQ = MN:SR = ML:RQ (corr.side, similar triangles)

Diana is working on a painting for school. She needs 1 1/5 ounces of yellow paint and 2 1/2 ounces of orange paint. How much less yellow paint does she need than the orange paint?

Answers

Answer:

1 3/10

Step-by-step explanation:

We are to determine the difference the paint of yellow and orange paint

The equation we are to solve is

[tex]2\frac{1}{2} - 1\frac{1}{5}[/tex]

The equation can be solved by taking the following steps

Subtract the two whole numbers divide each denominator by the least common multiple of the denominator and multiply the figures by the numerator

[tex]1\frac{5 - 2}{10}[/tex] = [tex]1\frac{3}{10}[/tex]

What number is 80% of 80?

Answers

Answer:

64 IS THE ANSWER........

PLEASE I NEED HELP ASAP
In diagram triangle PQV and triangle WXY . What is length of XY

Answers

Answer:

:(

Step-by-step explanation:

idek

I think this is the answer

50.6 is what percent of 55?
50.6 is % of 55.

Answers

Answer:

50.6 is 92% of 55

Step-by-step explanation:

50.6:55*100 =

(50.6*100):55 =

5060:55 = 92

Now we have: 50.6 is what percent of 55 = 92

Hope this helped!

Students in Ms. Singh’s class had the following scores on their last quiz. What was the median score of Ms. Singh’s 20 students?

85, 83, 68, 77, 72, 95, 87, 75, 73, 55,
82, 85, 91, 86, 92, 78, 85, 86, 79, 82

Answers

Answer:

Median score = 82.5

Step-by-step explanation:

First, arrange the given data in an ordered manner. Thus:

55, 68, 72, 73, 75, 77, 78, 79, 82, 82, 83, 85, 85, 85, 86, 86, 87, 91, 92, 95

The median = the average of the 10th and 11th data

Median = (82 + 83) ÷ 2

Median = 165 ÷ 2

Medina = 82.5

MY HOMEWORK IS DUE TODAY HELPPPPP???????????????????

Answers

for the page that starts with problems 13 and 14, it is mostly all the pythagorean therom which is a² + b² = c² (all you have to do is plug the numbers in)
in order to do this make sure you remember the longest side or the side directory across from the 90 degree angle is always c! a and b can be any of the other two sides (the legs) they just cannot be the longest side. Here’s problem 13:

a² + b² = c²
now we plug in all the numbers we have
a² + 3² = 5²
in this case i made the missing side “a”
now we must square the numbers
a² + 9 = 25
we can’t square a since we don’t have a number for it
a² + 9 = 25
-9 -9
——————
a² = 16
since we can’t add to get to the missing side like usual, we must subtract the other leg (b in this case) from c
now we must get rid of the square on the a, and because we can’t square it, the only that gets rid of a square is a square root (remember what you do to one side you must do to the other)

√a² = √16
if you don’t know how to square root on a regular calculator i suggest looking up a square root calculated (calculator soup is a pretty good reasource)
you only have to do actual math for the 16, so once you square root the 16, just cross out the square root and square on the a and you’ll get your answer
a = 4

Factor 60y - 90 - 20x to identify equivalent expressions

Answers

Answer:

10(6y−9−2x) and 5(12y−18−4x)

Answer: 10(60y/10 - 90/10 +-20x/10)

Carlos cut StartFraction 5 Over 12 EndFraction of a yard of cloth into 5 pieces of equal length. What was the length of each piece of cloth? HELP?????????!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

1/12 yard

Step-by-step explanation:

From the above question:

5 pieces of equal length = 5/12 yards

1 piece of equal length = x yard

Cross Multiply

5 pieces × x = 1 piece × 5/12 yards

x = 1 piece × 5/12 yards/5 pieces

x = 5/12 ÷ 5

x = 5/12 × 1/5

x = 1/12 yard

The length of each piece of cloth is 1/12 yard

If y = -2x + 3, find y when x = -3

Answers

Y= -2(-3) + 3

-2 multiplied by -3 is 6 and 6+3 is 9, meaning y= 9 when x= -3

HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP

Answers

Answer: Quora. It will help, trust me or search it up

The net of a rectangular prism as shown in the diagram below what is the total surface area of the rectangle prism in square inches. HELP PLZZZZZ

Answers

Answer:

b. 278 sq. in.

Step-by-step explanation:

i passed pre-algebra ik what i'm talking about

How to find mean absolute deviation

Answers

To find the mean absolute deviation of the data, start by finding the mean of the data set. Find the sum of the data values, and divide the sum by the number of data values. Find the absolute value of the difference between each data value and the mean: |data value – mean|.

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hope it helps

will give brainliest if you help me

Answers

Answer:

1120 in³

Step-by-step explanation:

The volume (V) of a cuboid is calculated as

V = area of base × height , then

V = 80 × 14 = 1120 in³

Angle a in angle B are complementary angle E equals 3X +4 angle B equals 5X +6 what is the measure of angle a

Answers

(3x+4)+(5x+6)=90
8x+10=90
8x=80
X=10

3(10)+4= A
30+4=A
24° is the measure of angle a.
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