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chy71
07.04.2021 •
Mathematics
The probability that Evi wets her bed during the night is 36% if she does not have a
glass of water after 7:30PM. If she does have a glass of water after 7:30PM, the
probability she wets the bed is 78%. The probability Evi's father allows her to have
a glass of water is 28%. Create a tree diagram to find the probability that Evi wets
the bed.
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Ответ:
126
Step-by-step explanation:
Total number of birds already observed: 59 + 68 + 12 + 1 = 140
Number of blue jays observed: 59
Fraction of blue jays: 59/140
Number of blue jays expected in 300 birds:
59/140 * 300 = 126
126