QUESTION 18 A lot of 50 bulbs contains 11 that are defective. The lot is to be inspected by choosing 20 bulbs at random and testing them individually. Find the probabi of getting 3 defective bulbs in the sample. O0.0438 O 0.2828 20 1918
QUESTION 18 A lot of 50 bulbs contains 11 that are defective. The lot is to be inspected by choosing 20 bulbs at random and testing them individually. Find the probabi of getting 3 defective bulbs in the sample. O0.0438 O 0.2828 20 1918
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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Transcribed Image Text:O13
QUESTION 18
A lot of 50 bulbs contains 11 that are defective. The lot is to be inspected by choosing 20 bulbs at random and testing them individually. Find the probability
of getting 3 defective bulbs in the sample.
O 0.0438
O0.2828
O 0.1918
O 0.1786
QUESTION 19
A random sample of size 18 is drawn from a normal population. What will be the judgment at 5% level of significance about the stated claim, given that the
ation is 6 42
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