Specifications call for a thermistor to test out at between 9,000 and 10,000 ohms at 25° Celsius. Ten thermistors are available, and three of these are to be selected for use Let Y denote the number among the three that do not conform to specifications. Find the probability distributions for Y (in tabular form) under the following conditions. (Enter your probabilities as fractions.) (a) Two thermistors do not conform to specifications among the ten that are available. y P(y) 04667 y 0 P(Y) X 0.4667 1 (b) Four thermistors do not conform to specifications among the ten that are available. 1 X 2 2

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Specifications call for a thermistor to test out at between 9,000 and 10,000 ohms at 25° Celsius. Ten thermistors are available, and three of these are to be selected for use.
Let Y denote the number among the three that do not conform to specifications. Find the probability distributions for Y (in tabular form) under the following conditions.
(Enter your probabilities as fractions.)
(a) Two thermistors do not conform to specifications among the ten that are available.
y
p(y) 04067
y
0
P(Y)
0.4667
0
(b) Four thermistors do not conform to specifications among the ten that are available.
1
1
x
2
2
3
Transcribed Image Text:Specifications call for a thermistor to test out at between 9,000 and 10,000 ohms at 25° Celsius. Ten thermistors are available, and three of these are to be selected for use. Let Y denote the number among the three that do not conform to specifications. Find the probability distributions for Y (in tabular form) under the following conditions. (Enter your probabilities as fractions.) (a) Two thermistors do not conform to specifications among the ten that are available. y p(y) 04067 y 0 P(Y) 0.4667 0 (b) Four thermistors do not conform to specifications among the ten that are available. 1 1 x 2 2 3
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