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Nicole3246
02.04.2020 •
Mathematics
In a group of 50 people, 38 are women, 23 have dark hair. 16 are women with dark hair. One person is selected. What is the probability the person is a man with dark hair?
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Ответ:
Probabilty that the person is a man with dark hair = 0.14.
Step-by-step explanation:
38 are women (given)
So, 50 - 38 = 12 are men.
23 have dark hair and 16 are women with dark hair (given)
So, 23 - 16 = 7 men with dark hair.
Thus, probability = number of men with dark hair / number of people
Probability = 7 / 50 = 0.14
Ответ:
P ( WD ) = 0.14
Step-by-step explanation:
Solution:-
- In the given group we have total , T = 50 people
- Number of women , W = 38
- Number of men, M = T - W = 50 - 38 = 12
- People with dark hair, D = 23
- Women with dark hair, WD = 16
- Men with dark-hair, MD = D - WD = 23 - 16 = 7
- The probability of selecting a person who is a man with dark hair is:
P ( WD ) = Possible men with dark hair / Total people in group
P ( WD ) = WD / T
P ( WD ) = 7 / 50
P ( WD ) = 0.14
Ответ: