1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Zielflug [23.3K]
3 years ago
9

the following data values represent a population. what is the variance of the values? 17, 5, 11, 1, 11

Mathematics
1 answer:
Vladimir [108]3 years ago
4 0
Variance = summation of (x - mean)^2 all divided by the number of dataset.
mean = (17 + 5 + 11 + 1 + 11)/5 = 9

Variance = [(17 - 9)^2 + (5 - 9)^2 + (11 - 9)^2 + (1 - 9)^2 + (11 - 9)^2]/5 = (8^2 + (-4)^2 + 2^2 + (-8)^2 + 2^2}/5 = (64 + 16 + 4 + 64 + 4)/5 = 152/5 = 30.4
You might be interested in
What is the sum of all of the perfect squares between
Nonamiya [84]

Answer:

(-138) is the answer.

Step-by-step explanation:

Perfect square numbers between 15 and 25 inclusive are 16 and 25.

Sum of perfect square numbers 16 and 25 = 16 + 25 = 41

Sum of the remaining numbers between 15 and 25 inclusive means sum of the numbers from 17 to 24 plus 15.

Since sum of an arithmetic progression is defined by the expression

S_{n}=\frac{n}{2}[2a+(n-1)d]

Where n = number of terms

a = first term of the sequence

d = common difference

S_{8}=\frac{8}{2} [2\times 17+(8-1)\times 1]

   = 4(34 + 7)

   = 164

Sum of 15 + S_{8} = 15 + 164 = 179

Now the difference between 41 and sum of perfect squares between 15 and 25 inclusive = 41-179

= -138

Therefore, answer is (-138).

7 0
3 years ago
The bakery you choose cost $1000 per month to rent. The bakery that you almost rented was one fourth for the cost but was too sm
Len [333]
25 x 4 equals 100. and 250 x 4 =1000. so  one fourth of 1000 is 250.
5 0
3 years ago
Toss coin 3 times. What is probability of getting 1 head and 2 tails in any order?
Ugo [173]
1/8 because

1/2 x 1/2 x 1/2
7 0
3 years ago
Read 2 more answers
If x=-4 and y=6, then xy-3=
Anna11 [10]

Answer:

-12

Step-by-step explanation:

We start with the equation: xy-3x

Substitute the variables: (-4)(6)-3(-4)

Solve using order of operations (start with multiplication): (-24)-(-12)

And then addition/subtration: (-24)-(-12)=-12

3 0
3 years ago
Which statement is true?
zhuklara [117]

Answer:

C) When an altitude is drawn from the right angle of a right triangle it creates three similar triangles.

Step-by-step explanation:

The Inscribed Similar Triangles Theorem states that if an altitude is drawn from the right angle of any right triangle, then the two triangles formed are similar to the original triangle and all three triangles are similar to each other.

4 0
2 years ago
Other questions:
  • 4 donuts cost 6.20 how much would 12 donuts cost?
    9·2 answers
  • Which of the following is (are) the solution(s) to 7|x+2|=-49
    5·1 answer
  • Monkey at the zoo eat 4 cups of food every day elephants eat 76 times as much which equation and solution represent the number o
    14·1 answer
  • Tasty Treats Baking Company asked all students in the senior class at Ridgemont High School the question, “Do you prefer chocola
    9·2 answers
  • How many seasons old is Darla if she is 24 years old?​
    11·2 answers
  • Simplify the following expression as much as possible.<br> 4^10/4^10 x 7^O=?
    10·2 answers
  • 4 = -8 - x What is x?
    8·2 answers
  • 1/3(2x-8) =4<br> A. 2<br> B. 6<br> C.10<br> D. 10/3
    11·2 answers
  • What is the slope of the table:<br> х -5, -3, -1<br> y 0, 5, 10
    9·1 answer
  • Mr Watkins needs to buy some oil for his central heating, Mr
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!