Defects occur at random in planks of wood with an average of 0.5 per 10 cm length. Office building buys a plank of length 100 cm. I. Find the probability that the office's plank contains at most 3 defects. II. The office buys 6 planks each of length 100 cm, find the probability that fewer than 2 of office's planks contain at most 4 defects.
Defects occur at random in planks of wood with an average of 0.5 per 10 cm length. Office building buys a plank of length 100 cm. I. Find the probability that the office's plank contains at most 3 defects. II. The office buys 6 planks each of length 100 cm, find the probability that fewer than 2 of office's planks contain at most 4 defects.
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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![Defects occur at random in planks of wood with an average of 0.5 per 10 cm length. Office building
buys a plank of length 100 cm.
I.
Find the probability that the office's plank contains at most 3 defects.
II. The office buys 6 planks each of length 100 cm, find the probability that fewer than 2 of office's
planks contain at most 4 defects.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4eb18f62-3de2-4e20-9ea5-40f646eac9a6%2F00950a56-94d7-4a06-a20d-91df3c11e6b7%2Feijdhci_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Defects occur at random in planks of wood with an average of 0.5 per 10 cm length. Office building
buys a plank of length 100 cm.
I.
Find the probability that the office's plank contains at most 3 defects.
II. The office buys 6 planks each of length 100 cm, find the probability that fewer than 2 of office's
planks contain at most 4 defects.
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