4. The probability of an examinee passing the board exam is0.6. Find the probability of passing the board exam before histhird attempt.5. A shipment of 50 items contains 3 defective items. What isthe probability that a random selected 3 items from theshipment contains less than 2 defective items?9. A box contains 5 RED balls and 4 GREEN balls. Two balls is selected from the box. Find the probability that:a green ball is obtained on the second draw given that the firstball drawn is RED. (No replacement balls is made before thesecond draw is made)b balls of different colors are drawn. (Replacement of balldrawn is made before the second draw is made)10. In a high school graduating class of 100 students, 54 studied math, 69 studied history, and 35 studied both math and history. Ifone of these students is selected at random, find the probability that(a) the student took mathematics or history;(b) the student did not take either of these subjects;

Answered: 4. The probability of an examinee…

4. The probability of an examinee passing the board exam is 0.6. Find the probability of passing the board exam before his third attempt.

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section8.7: Probability

Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...

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Question

4. The probability of an examinee passing the board exam is
0.6. Find the probability of passing the board exam before his
third attempt.
5. A shipment of 50 items contains 3 defective items. What is
the probability that a random selected 3 items from the
shipment contains less than 2 defective items?
9. A box contains 5 RED balls and 4 GREEN balls. Two balls is selected from the box. Find the probability that:
a green ball is obtained on the second draw given that the first
ball drawn is RED. (No replacement balls is made before the
second draw is made)
b balls of different colors are drawn. (Replacement of ball
drawn is made before the second draw is made)
10. In a high school graduating class of 100 students, 54 studied math, 69 studied history, and 35 studied both math and history. If
one of these students is selected at random, find the probability that
(a) the student took mathematics or history;
(b) the student did not take either of these subjects;

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