7 8 9 10 11 12 13 14 P(X) 0.03 k 0.15 0.20 0.19 2k 0.10 0.07 0.02 a. Find the probability that the number of days a carpenter cannot work is at most 11 days. b. Find the probability that the number of days a carpenter cannot work is at least 9 days.
7 8 9 10 11 12 13 14 P(X) 0.03 k 0.15 0.20 0.19 2k 0.10 0.07 0.02 a. Find the probability that the number of days a carpenter cannot work is at most 11 days. b. Find the probability that the number of days a carpenter cannot work is at least 9 days.
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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Question
The number X of days in the winter months that a carpenter cannot work because of the weather has
the probability distribution of:
![7
8
9
10
11
12
13
14
P(X)
0.03
k
0.15
0.20
0.19
2k
0.10
0.07
0.02
а.
Find the probability that the number of days a carpenter cannot work is at most 11 days.
b. Find the probability that the number of days a carpenter cannot work is at least 9 days.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7b761603-de40-46f9-afe8-a9c05ac0ea30%2Fd142e390-74ee-4ccb-87fa-a8492b0c1823%2Ff59hfcb_processed.png&w=3840&q=75)
Transcribed Image Text:7
8
9
10
11
12
13
14
P(X)
0.03
k
0.15
0.20
0.19
2k
0.10
0.07
0.02
а.
Find the probability that the number of days a carpenter cannot work is at most 11 days.
b. Find the probability that the number of days a carpenter cannot work is at least 9 days.
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