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
Alla [95]
3 years ago
11

A data set consists of the values 2, 6, 3, and 1. If we consider this a population (all the values available), the variance isA.

12
B. 14
C. the square root of 3.5
D. the square root of 14
E. none of the above
Mathematics
1 answer:
Hoochie [10]3 years ago
8 0

Answer: E. none of the above

Step-by-step explanation:

The given data values that represents the population:

2, 6, 3, and 1.

Number of values : n=4

Mean of the data values = \dfrac{\text{Sum of values}}{\text{No. of values}}

\dfrac{2+6+3+1}{4}=\dfrac{12}{4}=3

Sum of the squares of the difference between each values and the mean =

(2-3)^2+(6-3)^2+(3-3)^2+(1-3)^2

=-1^2+3^2+0^2+(-2)^2

=1+9+0+4=14

Now , Variance = (Sum of the squares of the difference between each values and the mean ) ÷ (n)

= (14) ÷ (4)= 3.5

Hence, the  variance is 3.5.  

Therefore , the correct  answer is "E. none of the above".

You might be interested in
When did the U.S dollar become part of a total fiat system
VladimirAG [237]

I believe in the 20th century, if you need an exact date reply with yes!

4 0
3 years ago
Read 2 more answers
Becky is using the expression 2z + 3 to represent the number of chairs in her classroom. There are twice as many chairs as table
Sergio039 [100]
It represents the number of tables
4 0
3 years ago
Read 2 more answers
Andrea deposited 138 dollars into er bank accont.write an expression representing Andrea's bank account.
marin [14]

Answer:

x + 138 = x + 138

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Find the circumference of the circle.
LiRa [457]
Circumference is π*diameter. since we're given a diameter of 14, the circumference is 14π
8 0
3 years ago
Read 2 more answers
Pls help me!!!!!! Its due tomorrow
prisoha [69]
Pls help its due tomorrow

3 0
3 years ago
Other questions:
  • 5 2/3 gave to her 4 friends how much did each one receive
    6·1 answer
  • Find the derivative of the function by using the Product Rule. Simplify your answer. f(x) = (x - 3)(x + 3)
    6·2 answers
  • What is the slope of the line?
    7·1 answer
  • 0.5,1:5,0.35,12/25,4/5 in least to greatest
    6·1 answer
  • If one endpoint is (-6,4) and the midpoint is (4,8) what would be the other endpoint ???? if you can explain it would be great
    6·1 answer
  • Solve the following equation 38 < 4x + 3 + 7 - 3x
    5·2 answers
  • The cost of floor material is $2840 and the installation cost $1.90 per square foot. If the total is $5120, find the area of the
    11·1 answer
  • At the end of a snow storm, Caroline saw there was a lot of snow on her front lawn. The temperature increased and the snow began
    11·1 answer
  • 3+x
    7·1 answer
  • A guy wire for a tree is 14 feet long. Making a 41° angle with the ground, how far is the base of the tree from the stake anchor
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!