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
Mnenie [13.5K]
3 years ago
14

In a large population, 92% of the households have cable tv. A simple random sample of 225 households is to be contacted and the

sample proportion computed. What is the mean and standard deviation of the sampling distribution of the sample proportions
Mathematics
1 answer:
skelet666 [1.2K]3 years ago
6 0

Answer:

the mean and the standard deviation is 0.92 and 0.01808 respectively

Step-by-step explanation:

The computation of the mean and the standard deviation is shown below:

The mean is 0.92

And, the standard deviation is

= √0.92 × (1 - 0.92) ÷ √225

= √0.92 × 0.08 ÷ √225

= √0.0736 ÷ √225

= √3.27

= 0.01808

Hence, the mean and the standard deviation is 0.92 and 0.01808 respectively

You might be interested in
Write an equation of a parabola in vertex form. Vertex (2,-3) and passes through (0,5)​
nydimaria [60]

Answer:

Step-by-step explanation:

The vertex form of a parabola is given by  y = a(x - h)^2 + k, where (h, k) is the vertex.

Given vertex at (2,-3), h = 2, k = -3

y = a(x - 2)^2 + (-3) = a(x - 2)^2 - 3

The parabola passes through (0,5) so

5 = a(0 - 2)^2 - 3

5 = 4a - 3

4a = 8

a = 2

The parabola equation in vertex form:

y = 2(x - 2)^2 - 3

3 0
3 years ago
A cone has a diameter of 8ft and height of 3ft. What’s the volume?
stepladder [879]

Step-by-step explanation:

1/3 πr²h

Given

diameter (d) = 8ft

radius (r) = d/2 = 8/2 = 4 ft

height (h) = 3 ft

Volume of cone

\frac{1}{3} \times \pi {r}^{2}  h

\frac{1}{3}  \times 3.14 \times  {4}^{2}  \times 3

\frac{150.72}{3}

=50.24 ft³

7 0
3 years ago
Read 2 more answers
Unit rate of. 183 miles in 3hours
Tatiana [17]
183/3: 61mph
The answer would be 61mph.
8 0
3 years ago
Read 2 more answers
Please tell me if # 6 and 7 is correct
lesantik [10]
#6 is incorrect
it's 6 7/8
#7 is correct
6 0
3 years ago
*EXTRA POINTS*
SashulF [63]

Answer:

geometric sequence

ratio

2

3 0
3 years ago
Other questions:
  • The length of a rectangle is 8 feet longer than the width. If the perimeter is 80 feet, find the length and width of the rectang
    12·1 answer
  • Sharon brought fabric to make costumes.
    8·1 answer
  • Calculate the total budget and then fill in the missing percentages. You will use some of the answers given more than once. Tota
    5·2 answers
  • If you roll two fair six sided dice what is the probability that at least one dice shows a three
    9·1 answer
  • Please simplify! 1+x-1+12x=12x-3
    13·2 answers
  • What's the sum of 1,015 and 119​
    15·1 answer
  • The ordered pairs in the table below represent a linear function. x y 6 2 9 8 What is the slope of the function?
    10·2 answers
  • Question Help A 156-inch board is cut into two pieces. One piece is two times the length of the other. Find the length of the sh
    6·1 answer
  • Can you anyone please help me?<br>​
    15·2 answers
  • The figure shown is a regular octagon. The measure of <br> What is the measure of
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!