Question * Let X be a random variable with probability distribution as shown below: if x<0 f(x) = 1 -e¯5.6 5.6 if x 20 Then the values of E (X) and V (X) are: E(X)=5.6 and V(X)=31.36 E(X)=16.8 and V(X)=282.24 E(X)=4.2 and V(X)=17.64 None of these
Question * Let X be a random variable with probability distribution as shown below: if x<0 f(x) = 1 -e¯5.6 5.6 if x 20 Then the values of E (X) and V (X) are: E(X)=5.6 and V(X)=31.36 E(X)=16.8 and V(X)=282.24 E(X)=4.2 and V(X)=17.64 None of these
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:0.1056
0.0062
Question
Let X be a random variable with probability distribution as shown below:
( 0
if x<0
f(x) = } 1
e 5.6
if x 20
5.6
Then the values of E(X) and V(X) are:
E(X)=5.6 and V(X)=31.36
E(X)=16.8 and V(X)=282.24
E(X)=4.2 and V(X)=17.64
None of these
Question*
A sample of 19 males participated in a sleep experiment in which the percentage of cach
participant's total sleeping time spent in a certaun stage of sleep was recorded. The
vanance computed from the sample data was 2 25 The 95 percent confidence nterval for
standard deviation of sleepmg tinic is
hp
to
fg
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