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
777dan777 [17]
3 years ago
14

In a survey of 5100 randomly selected T.V. viewers, 40% said they watch network news programs. Find the margin of error for this

survey if we want 95% confidence in our estimate of the percent of T.V. viewers who watch network news programs.
Mathematics
1 answer:
horsena [70]3 years ago
8 0

Answer:

Margin of error = 0.01344

Step-by-step explanation:

Margin of error = critical value × standard deviation.

critical value for 95% confidence interval = 1.96

Standard deviation = √[(p)(q)/n]

p = 0.4, q = 1 - p = 1 - 0.4 = 0.6, n = 5100

Standard deviation = √[(0.6×0.4)/5100] = 0.00686

Margin of error = 1.96 × 0.00686 = 0.0134

You might be interested in
If (x-2) is a factor of x^3+kx^2 +12x-8 then k=?
AURORKA [14]

Answer:

k = - 6

Step-by-step explanation:

Since (x - 2) is a factor then x = 2 is a root

Substitute x = 2 into the polynomial and equate to zero, that is

2³ + k(2)² + 12(2) - 8 = 0

8 + 4k + 24 - 8 = 0

4k + 24 = 0 ( subtract 24 from both sides )

4k = - 24 ( divide both sides by 4 )

k = - 6

5 0
3 years ago
A bag contains 5 white, 3 black, and 2 green balls. Balls are picked at random.
Soloha48 [4]

Answer:

look down there

Step-by-step explanation:

First ball:

Probability of drawing a white ball is 5/8

Probability of drawing a black ball is 3/8

Second ball:

This depends on the first ball drawn, lets say you drew a white ball initially, 4 white balls are left out of 7 balls in total. The probability of a white ball in the second pick is 4/7.

Total probability of drawing two white balls is 5/8*4/7 (since they are independent events).

If you picked a black ball initially, picking another black ball would have a probability of 2/7, on similar grounds , total prob for 2 blacks would be 3/8*2/7.

The probability that you pick 2 balls of same color is (5/14 + 3/28) = 13/28. (Since they are mutually exclusive events)

6 0
3 years ago
The graph of g(x) is the result of translating the graph of f(x) = 3* six units to the right. What is the equation
Doss [256]

Answer:

Step-by-step explanation:

Pls help me with my question roo

3 0
3 years ago
Subtract. <br> 23.87 - 1.12<br><br> A. 13.75<br><br> B. 22.75<br><br> C. 24.99<br><br> D. 12.67
Shtirlitz [24]

Answer:

B. 22.75

Step-by-step explanation:

23.87

<u>-   1.12</u>

22.75

7 0
3 years ago
Read 2 more answers
What percentage of 23 is 924
monitta
Well, the answer to the question in your picture is $1200.

If x is the original price, and we took 23%, or 0.23 from that, we are left with 77%, or 0.77 of the full price.

So 0.77x = 924
x = 924/0.77
x = 1,200

1200 - 0.23(1200) = 924

924 = 0.77x

8 0
2 years ago
Read 2 more answers
Other questions:
  • Help me please please
    15·1 answer
  • I need the big brain help and maybe mark brainliest<br><br><br>:)
    15·2 answers
  • The sum of a and 46 is equal to k. Let k = 97. Which equation can be used to find the value of a? A. a + 46 = 97 B. a – 97 = 46
    13·1 answer
  • Can someone help me on number 5!!!
    9·1 answer
  • It is Keke’s birthday, and her parents want to surprise her with a room full of balloons. Use the Fermi process
    13·1 answer
  • Which expression has a solution of 27, if r = 3? 8 r 6 r 9 r 7 r
    9·1 answer
  • PLASE NEED HELP FAST
    6·1 answer
  • Please helpppp ty giving brain liest trying to get more:)
    7·2 answers
  • To make purple paint stephen mixed 1 1/4 gallons of red paint 1 3/4 of blue paint how many gallons of purple paint did he make?
    8·1 answer
  • Insurance companies are interested in knowing the population percent of drivers who always buckle up before riding in a car. Whe
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!