13. A grocer mixes pecans priced at $4.50 per pound with almonds priced at $5.25 per pound. How
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Answer:
solution is D
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Answer:
Step-by-step explanation:
Ask yourself, when will Xavier and Yolanda meet??
Firstly, since it is given that Xavier doesn't wait at all, in order for them to meet, Yolanda must arrive before Xavier. This in mathematical terms can be expressed as
Secondly, Yolanda will wait for only 45 minutes, So Xavier must arrive before that, i.e
Combining both conditions, we obtain
If and
be the density functions for Xavier and Yolanda respectively, the probability of meeting is given by,
.