02. In a mass production of bolts, it is found that 5% are defective. Bolts are selected at random and put into packets of ten. A packet is selected is selected at random. Find the probability that it contains a) Three defective bolts P(X= 3). b) Less than three defective bolts P(X < 3). Two packets are selected at random. c) Find the probability that there are no defective bolts in either packet P(X = 0).

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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Q2.
In a mass production of bolts, it is found that 5% are defective. Bolts are selected at
random and put into packets of ten. A packet is selected is selected at random. Find the
probability that it contains
a) Three defective bolts P(X = 3).
b) Less than three defective bolts P(X < 3).
Two packets are selected at random.
c) Find the probability that there are no defective bolts in either packet P(X = 0).
Transcribed Image Text:Q2. In a mass production of bolts, it is found that 5% are defective. Bolts are selected at random and put into packets of ten. A packet is selected is selected at random. Find the probability that it contains a) Three defective bolts P(X = 3). b) Less than three defective bolts P(X < 3). Two packets are selected at random. c) Find the probability that there are no defective bolts in either packet P(X = 0).
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