Suppose the probability distribution for X = number of jobs held during the past year for students at a school is as in the following table. No. of Jobs, X 0 1 2 3 4 Probability 0.15 0.37 0.27 0.14 0.07 (a) Find P(X 2), the probability that a randomly selected student held two or fewer jobs during the past year. P(X 2) = (b) Find the probability, P that a randomly selected student held either one or two jobs during the past year. P = (c) Find P(X > 0), the probability that a randomly selected student held at least one job during the past year. P(X > 0) = (d) Fill in the table that lists the cumulative probability distribution function for X. k 0 1 2 3 4 p(x< k)
Suppose the probability distribution for X = number of jobs held during the past year for students at a school is as in the following table. No. of Jobs, X 0 1 2 3 4 Probability 0.15 0.37 0.27 0.14 0.07 (a) Find P(X 2), the probability that a randomly selected student held two or fewer jobs during the past year. P(X 2) = (b) Find the probability, P that a randomly selected student held either one or two jobs during the past year. P = (c) Find P(X > 0), the probability that a randomly selected student held at least one job during the past year. P(X > 0) = (d) Fill in the table that lists the cumulative probability distribution function for X. k 0 1 2 3 4 p(x< k)
Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter14: Counting And Probability
Section14.2: Probability
Problem 3E: The conditional probability of E given that F occurs is P(EF)=___________. So in rolling a die the...
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Suppose the
| No. of Jobs, X | 0 | 1 | 2 | 3 | 4 |
| Probability | 0.15 | 0.37 | 0.27 | 0.14 | 0.07 |
(a) Find P(X 2), the probability that a randomly selected student held two or fewer jobs during the past year.
P(X 2) =
(b) Find the probability, P that a randomly selected student held either one or two jobs during the past year.
P =
(c) Find P(X > 0), the probability that a randomly selected student held at least one job during the past year.
P(X > 0) =
(d) Fill in the table that lists the cumulativeprobability distribution function for X.
P(X 2) =
(b) Find the probability, P that a randomly selected student held either one or two jobs during the past year.
P =
(c) Find P(X > 0), the probability that a randomly selected student held at least one job during the past year.
P(X > 0) =
(d) Fill in the table that lists the cumulative
| k | 0 | 1 | 2 | 3 | 4 |
| p(x< k) |
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