Question 1205579: Question # 05
(i) A single die is rolled 4 times. Find the probability of getting at least one 5.
(ii) In a certain high-risk group, the chances of a person having suffered a heart attack are 55%. If 6 people are chosen, find the probability that at least 1 will have had a heart attack. (hint: Binomial Dist)
(Hi)
A box contains black chips and white chips. A person selects two chips without replacement. If the probability of selecting a black chip and a white chip is, and the probability of selecting a black chip on the first draw is i, find the probability of selecting the white chip on the second draw, given that the first chip selected was a black chip.
probability)
(hint: conditional
(iv)
A recent survey asked 100 people if they thought women in the armed forces should be permitted to participate in combat. The results of the survey are shown.
Gender
Yes
No
Total
Male
Female
32
18
50
50
Total
40
60
100
Find these probabilities.
a. The respondent answered yes, given that the respondent was a female.
b. The respondent was a male, given that the respondent answered no.
(v) (Hint: Independent events)
A coin is flipped and a die is rolled. Find the probability of getting a head on the coin and a 4 on the die.
(vi)
The corporate research and development centers for three local companies have the following number of employees:
U.S. Steel
Alcoa
110
Bayer Material Science
750
250
If a research employee is selected at random, find the probability that the employee is employed by U.S. Steel or Alcoa.
Answer by ikleyn(52923)   (Show Source):
You can put this solution on YOUR website! .
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