a. Describe this probability distribution. Be sure to check the appropriate conditions. b. What is the probability that the third person asked is the first person who gives him a pencil? c. What is the probability that Mason gets a pencil by the third person he would ask? d. How many people should Mason expect to ask before getting a pencil? e. Should Mason be surprised if Mason didn't receive a pencil until he asked at least 10 people? Calculate a probability to justify your answer. f. Find the standard deviation for the distribution of the number of people he asks for a pencil before finding someone who will give him one.
a. Describe this probability distribution. Be sure to check the appropriate conditions. b. What is the probability that the third person asked is the first person who gives him a pencil? c. What is the probability that Mason gets a pencil by the third person he would ask? d. How many people should Mason expect to ask before getting a pencil? e. Should Mason be surprised if Mason didn't receive a pencil until he asked at least 10 people? Calculate a probability to justify your answer. f. Find the standard deviation for the distribution of the number of people he asks for a pencil before finding someone who will give him one.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
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Transcribed Image Text:Pencil for Mason
Mason never has a pencil when test day rolls around. Because the classmates are tired of having to
supply pencils for Mason, only 15% of students will give Mason a pencil when asked. Today is test
day and Mason begins asking randomly selected students for a pencil. Let Y = the number of
students Mason asks until he finds someone who will give him a pencil.
a. Describe this probability distribution. Be sure to check the appropriate conditions.
b. What is the probability that the third person asked is the first person who gives him a pencil?
c. What is the probability that Mason gets a pencil by the third person he would ask?
d. How many people should Mason expect to ask before getting a pencil?
e. Should Mason be surprised if Mason didn't receive a pencil until he asked at least 10 people?
Calculate a probability to justify your answer.
f. Find the standard deviation for the distribution of the number of people he asks for a pencil before
finding someone who will give him one.
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