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Engineering Maths · Q3

Probability and Statistics

Engineering and GATE · Engineering Maths · question 3

Q3

A machine produces 0, 1 or 2 defective pieces in a day with associated probability of 1/6,\,2/3 and 1/6 respectively. The mean value and the variance of the number of defective pieces produced by the machine in a day, respectively, are

A machine produces 0, 1 or 2 defective pieces in a day with associated probability of  and respectively. The mean value and the variance of the number of defective pieces produced by the machine in a day, respectively, are
A.
1 and
Answer
B.
and 1
C.
1 and
D.
and

Answer: Option A

Solution

Answer: Option A
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