sheltongraham1011
29.01.2020 •
Mathematics
98% of dr. williams patients end up with 20-30 vision or better. find the probability that exactly 4 of her next 6 patients end up with 20-30 vision or better.
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Ответ:
0.1095
Step-by-step explanation:
Data:
Let:
probability of patients getting well = 0.98
The number of patients. n = 4
The variables are independent, therefore, n = 6
The probability of patients getting 20 - 30 vision, is given by:
P = 4C3 (0.97) (3) (0.03) (1)
= 0.1095
Ответ:
g=s+25
subsisute
s+s+25=425
2s+25=425
subtract 25
2s=400
divide 2
s=200
subsisute
g=200+25
g=225
seiji=200
gavin=225