(1) What is the value of E(X)? (2) What is the value of Var(X)?

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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1.Suppose that one word is to be selected at random from the sentence "THE GIRL PUT ON HER
BEAUTIFUL RED HAT". If X denotes the number of letters in the word that is selected,
(1) What is the value of E(X)?
(2) What is the value of Var(X)?
Transcribed Image Text:1.Suppose that one word is to be selected at random from the sentence "THE GIRL PUT ON HER BEAUTIFUL RED HAT". If X denotes the number of letters in the word that is selected, (1) What is the value of E(X)? (2) What is the value of Var(X)?
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