Reference no: EM132152090
Edith Educationer has a real problem with children's television programs. She believes there are too many commercials in them. To study this, she collects a sample of 500 children's programs (n = 500) and counts how many commercials are on during the program. The frequency count of programs with the number of commercials is found below:
Commercials, X
8
9
10
11
12
Frequency
50
75
150
125
100
P(X)
Complete the table to produce the general discrete probability distribution (3 points). Use this probability distribution to answer questions a - h.
a. How many commercials, X, is the most likely outcome to occur?
b. Find the average number and standard deviation of commercials a child will expect to see in a program.
c. What is the probability that a child will see 10 or more commercials when watching a program? P(X ≥ 10)
d. What is the probability that a child will watch 4 commercials? P(X <4)
e. What is the probability that a child will watch exactly 12 commercials? P(X =12)
f. What is the probability that a child will watch exactly 7 commercials? P(X =7)
g. What is the expected number of commercials in a program?
h. Graph the probability Distribution
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