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
nasty-shy [4]
3 years ago
10

A population of small bottles and their contents has the following weights (in grams): 4, 2, 5, 4, 5, 2, and 6. What is the vari

ance of bottle weight?
A. 6.92.
B. 4.80.
C. 1.96.
D. 2.33.
Mathematics
1 answer:
Ahat [919]3 years ago
4 0

Answer:

D. 2.33.

Step-by-step explanation:

Given;

the weight distribution of the bottles = 4, 2, 5, 4, 5, 2, and 6

sum of the weights = 28

the mean (x) = 28/7

                 x = 4

the sum of square of the mean deviation is calculated as:

= (4 - 4)² + (2 - 4)² + (5 - 4)² + (4 - 4)² + (5 - 4)² + (2 - 4)² + (6 - 4)²

= 0 + 4 + 1 + 0 + 1  + 4 + 4

= 14

the \ variance \ is \ calculated \ as:\\\\\sigma ^2 = \frac{\sum (x-\bar x)^2}{n-1} \\\\\sigma ^2 = \frac{14}{7-1} = \frac{14}{6} = 2.33

Therefore, the correct answer is D

You might be interested in
What’s all the answers to lesson 9 algebra 1 a unit 5
Lena [83]
Do you have a picture or some information of some sort?
8 0
3 years ago
The graph below shows a household's budget. If the household spends $2,000 a month, what are their utility costs for the month?
Llana [10]
The answer should be $200.
Your welcome :)
3 0
3 years ago
!!!!!!!!! PLEASE HELP !!!!!!!!!!<br><br><br> Solve x² - 6x - 7 = 0
sesenic [268]

Answer:

x = 7, -1

Step-by-step explanation:

4 0
3 years ago
When calculating the circumference of a circle, sometimes the radius is given instead of the diameter. What is the relationship
marin [14]

Answer:

Option A ( radius is twice the daimeter )

Step-by-step explanation:

The relationship between radius and daimeter is given as

       Radius² = Daimeter    ⇒    r² =  d

And cricumference can be calculated with radius

 As circumference is    2πr

8 0
2 years ago
Read 2 more answers
Solved i need the answer ASAP
makkiz [27]

Answer:

V = - 3

Step-by-step explanation:

- 1 =  \frac{1}{3} v \\  \\  - 1 \times 3 = v \\  \\ v =  - 3

Your answer is absolutely correct.

8 0
3 years ago
Other questions:
  • What does the perimeter of this figure consist of?
    7·2 answers
  • How many triangles can be constructed with sides measuring 5 m, 16 m, and 5 m?
    9·2 answers
  • 1. If the same number is added to the numerator and subtracted from the denominator of 23/12, the resulting fraction is equivale
    6·1 answer
  • Can i get help on this asap!!!!!!! PLZ
    9·2 answers
  • Simplify the expression 6^3 + 5(4 - 2).<br><br>28<br>36<br>226<br>234<br><br>​
    8·2 answers
  • Help please!
    15·1 answer
  • Rate of change on a graph.- I'll give brainly for the answer, thank you
    12·1 answer
  • Hurry Need Help I Will Give Brainliest!!
    10·2 answers
  • Identify whether each of the following statements is true or false.
    5·1 answer
  • Which is the only state that uses to calculate its area
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!