19. People were surveyed and asked how many TVs are in their household. Here are the results: 1 2 3 4 Frequency P(x) 11 44 35 18 12 Here x is the number of TVs and the frequency is the number of people who have x TVs. a) Fill in that last row of probabilities, using the fact that P(x) is the relative frequency of x. Leave the probabilities as decimals. Hint: first you will need to calculate the total number of people who were surveyed. b) Find the average number of TVs per household by applying the formula µ = ExP(x). This means that you should multiply each x value by its corresponding P(x) value, and then add up the results.
19. People were surveyed and asked how many TVs are in their household. Here are the results: 1 2 3 4 Frequency P(x) 11 44 35 18 12 Here x is the number of TVs and the frequency is the number of people who have x TVs. a) Fill in that last row of probabilities, using the fact that P(x) is the relative frequency of x. Leave the probabilities as decimals. Hint: first you will need to calculate the total number of people who were surveyed. b) Find the average number of TVs per household by applying the formula µ = ExP(x). This means that you should multiply each x value by its corresponding P(x) value, and then add up the results.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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please 19a,19b thank you
Transcribed Image Text:19. People were surveyed and asked how many TVs are in their household. Here are the results:
1
3
4
44
35
12
Frequency
P(x)
11
18
Here x is the number of TVs and the frequency is the number of people who have x TVs.
a) Fill in that last row of probabilities, using the fact that P(x) is the relative frequency of x. Leave the
probabilities as decimals.
Hint: first you will need to calculate the total number of people who were surveyed.
ExP(x). This means that
b) Find the average number of TVs per household by applying the formula u =
you should multiply each x value by its corresponding P(x) value, and then add up the results.
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