The two-way table below gives information on seniors and juniors at a high school and by which means they typically get to schoo
l.
you select one student from this group at random. If the student says he is a senior, what is the probability that he or she takes the bus to school.
A) 0.073
B) 0.160
C) 0.256
D) 0.455
you select one student from this group at random. If the student says he is a senior, what is the probability that he or she takes the bus to school.
A) 0.073
B) 0.160
C) 0.256
D) 0.455
1 answer:
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Answer:
0.632
Step-by-step explanation:
Given that a homeowner is three times as likely to purchase additional jewelry coverage as additional electronics coverage
If probability of purchasing additional electronics coverage = p, then prob of purchasing jewelry coverage = 3p
The two events are independent hence joint probability is product of these two.
i.e. P(both) =
This is given as 0.2
the probability that a homeowner purchases exactly one coverage.
= Prob he purchases I + prob he purchases II-2(prob he purchases both)