lawanda90303
28.04.2021 •
Mathematics
A survey found that 28% of pet owners had their pets bathed professionally rather than do it
themselves. If 21 pet owners are randomly selected, find the probability that
a. exactly 5 people have their baths bathed professionally (2 points)
b. exactly 5 people do the activity by themselves (2 points)
c. at most 2 people have their baths bathed professionally (3 points)
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Ответ:
D. 9
Step-by-step explanation: