Bulbs are packed in cartons each containing 40 bulbs. Seven hundred were examined for defective bulbs and the results are given in the following table: Number of defective bulbs 0 1 2 3 4 5 6 more than 6 Frequency 400 180 48 41 18 8 3 One carton selected at random, what is that the probability that it has a. No defective bulb? b. Defective bulbs from 2 to 6? c. Defective bulbs less than 4?
Bulbs are packed in cartons each containing 40 bulbs. Seven hundred were examined for defective bulbs and the results are given in the following table: Number of defective bulbs 0 1 2 3 4 5 6 more than 6 Frequency 400 180 48 41 18 8 3 One carton selected at random, what is that the probability that it has a. No defective bulb? b. Defective bulbs from 2 to 6? c. Defective bulbs less than 4?
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Transcribed Image Text:Bulbs are packed in cartons each containing 40 bulbs. Seven hundred were examined for
defective bulbs and the results are given in the following table:
Number of defective bulbs 0 1 2 3 4 5 6 more than 6
Frequency
400 180 48 41 18 8 3
One carton selected at random, what is that the probability that it has
a. No defective bulb?
b. Defective bulbs from 2 to 6?
c. Defective bulbs less than 4?
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