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

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