wo friends argue over who brushes their teeth more often. To settle the argument, they keep track of the number of mornings and nights they brush and calculate a probability. These are shown in the table. Braxton Arabella Probability of brushing in moning 0.79 0.85 Probability of brushing in evening 0.81 0.72 Who is more likely to brush both morning and evening? Assume all events are independent
wo friends argue over who brushes their teeth more often. To settle the argument, they keep track of the number of mornings and nights they brush and calculate a probability. These are shown in the table. Braxton Arabella Probability of brushing in moning 0.79 0.85 Probability of brushing in evening 0.81 0.72 Who is more likely to brush both morning and evening? Assume all events are independent
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Transcribed Image Text:Two friends argue over who brushes their teeth more often. To settle the
argument, they keep track of the number of mornings and nights they brush
and calculate a probability. These are shown in the table.
Braxton
Arabella
Probability of brushing
in morning
0.79
0.85
Probability of brushing
in evening
0.81
0.72
Who is more likely to brush both morning and evening? Assume all events are
independent.
Transcribed Image Text:Who is more likely to brush both morning and evening? Assume all events are
independent.
A. Arabella. She has a 0.72 probability of brushing both times.
B. Braxton. He has a 0.64 probability of brushing both times.
C. Arabella. She has a 0.61 probability of brushing both times.
D. Braxton. He has a 0.79 probability of brushing both times.
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