Based on an analysis of sample data, an article proposed the pdf f(x) = 0.25e−0.25(x − 1) when x ≥ 1 as a model for the distribution of X = time (sec) spent at the median line. (Round your answers to three decimal places.) (a) What is the probability that waiting time is at most 7 sec? More than 7 sec? at most 7 sec P(X ≤ 7) = more than 7 sec P(X > 7) =
Based on an analysis of sample data, an article proposed the pdf f(x) = 0.25e−0.25(x − 1) when x ≥ 1 as a model for the distribution of X = time (sec) spent at the median line. (Round your answers to three decimal places.) (a) What is the probability that waiting time is at most 7 sec? More than 7 sec? at most 7 sec P(X ≤ 7) = more than 7 sec P(X > 7) =
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.CR: Chapter 13 Review
Problem 60CR
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Question
Based on an analysis of sample data, an article proposed the
f(x) = 0.25e−0.25(x − 1)
when
x ≥ 1
as a model for the distribution of
X = time (sec)
spent at the median line. (Round your answers to three decimal places.)
(a) What is the probability that waiting time is at most 7 sec? More than 7 sec?
(b) What is the probability that waiting time is between 4 and 9 sec?
| at most 7 sec | P(X ≤ 7) | = | ||
| more than 7 sec | P(X > 7) | = |
(b) What is the probability that waiting time is between 4 and 9 sec?
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