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 x < 0 x225 0 ≤ x < 51 5 ≤ xUse 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). (c)Calculate P(X > 3.5). (d)What is the median checkout duration ? [solve 0.5 = F()]. (e)Obtain the density function f(x).f(x) = F ′(x) = 15x 0≤x < 50 otherwise(f)Calculate E(X). (g)Calculate V(X) and ?x.V(X) ?x (h)If the borrower is charged an amount h(X) = X2 when checkout duration is X, compute the expected charge E[h(X)]. Let X denote the amount of time a book on two-hour reserve is actually checked out, and suppose the cdf is the following.x < 0F(x) =0 3.5).0.51(d) What is the median checkout duration i? [solve 0.5 = F()].3.5355(e) Obtain the density function f(x).f(x) = F'(x)10 (e) Obtain the density function f(x).f(x) = F'(x)0

Answered: Let X denote the amount of time a book…

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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Question

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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) =

x < 0

x²

0 ≤ x < 5

5 ≤ 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).

(c)

Calculate P(X > 3.5).

(d)

What is the median checkout duration ? [solve 0.5 = F()].

(e)

Obtain the density function f(x).

f(x)

F ′(x)

15x	0	≤	x < 5
0	otherwise

(f)

Calculate E(X).

(g)

Calculate V(X) and ?_x.

V(X) ?_x

(h)

If the borrower is charged an amount h(X) = X² when checkout duration is X, compute the expected charge

E[h(X)].

Let X denote the amount of time a book on two-hour reserve is actually checked out, and suppose the cdf is the following.
x < 0
F(x) =
0 <x < 5
25
1
5 < x
Use the cdf to obtain the following. (If necessary, round your answer to four decimal places.)
(a) Calculate P(X < 3).
0.04
(b) Calculate P(2.5 < X < 3).
|-0.21
(c) Calculate P(X > 3.5).
0.51
(d) What is the median checkout duration i? [solve 0.5 = F()].
3.5355
(e) Obtain the density function f(x).
f(x) = F'(x)
1
0<x < 5
otherwise
(f) Calculate E(X).
8.3333

(e) Obtain the density function f(x).
f(x) = F'(x)
0 <x < 5
0.
otherwise
(f) Calculate E(X).
8.3333
(g) Calculate V(X) and oy.
V(X)
-64.4444
8.0277
(h) If the borrower is charged an amount h(X) = x2 when checkout duration is X, compute the expected charge E[h(X)].

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

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