Let X denote the amount of time a book on two-hour reserve is actually checked out, and suppose the cdf is the following. F(x) = 0 16 1 x < 0 0 3.5). 4≤X Use the cdf to obtain the following. (If necessary, round your answer to four decimal places.) (a) Calculate P(X ≤ 3). (b) Calculate P(2.5 ≤ x ≤ 3).

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.6: Exponential And Logarithmic Equations
Problem 53E
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Let X denote the amount of time a book on two-hour reserve is actually checked out, and suppose the cdf is the following.
F(x) =
0
16
1
x < 0
Use the cdf to obtain the following. (If necessary, round your answer to four decimal places.)
(a) Calculate P(X ≤ 3).
(c) Calculate P(X> 3.5).
0 < x < 4
4 ≤ x
(b) Calculate P(2.5 ≤X ≤ 3).
(f) Calculate E(X).
(d) What is the median checkout duration ? [solve 0.5 = F(M)].
(e) Obtain the density function f(x).
f(x) = F'(x)
-{
0 < x < 4
otherwise
Transcribed Image Text:Let X denote the amount of time a book on two-hour reserve is actually checked out, and suppose the cdf is the following. F(x) = 0 16 1 x < 0 Use the cdf to obtain the following. (If necessary, round your answer to four decimal places.) (a) Calculate P(X ≤ 3). (c) Calculate P(X> 3.5). 0 < x < 4 4 ≤ x (b) Calculate P(2.5 ≤X ≤ 3). (f) Calculate E(X). (d) What is the median checkout duration ? [solve 0.5 = F(M)]. (e) Obtain the density function f(x). f(x) = F'(x) -{ 0 < x < 4 otherwise
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