Renee and Thomas live at the beach and collect seashells. The number of shells Renee collects on any given day, R, is approximately Normal with a mean of 58.2 shells and a standard deviation of 12.8 shells. The number of shells Thomas collects on any given day, T, is approximately Normal with a mean of 47.9 shells and a standard deviation of 11.5 shells. Assume the two random variables are independent of each other. What is the probability that on a randomly selected day the total number of shells collected by Renee and Thomas is 120 or more? 0.002 0.209 0.284 0.791
Renee and Thomas live at the beach and collect seashells. The number of shells Renee collects on any given day, R, is approximately Normal with a mean of 58.2 shells and a standard deviation of 12.8 shells. The number of shells Thomas collects on any given day, T, is approximately Normal with a mean of 47.9 shells and a standard deviation of 11.5 shells. Assume the two random variables are independent of each other. What is the probability that on a randomly selected day the total number of shells collected by Renee and Thomas is 120 or more? 0.002 0.209 0.284 0.791
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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Renee and Thomas live at the beach and collect seashells. The number of shells Renee collects on any given day, R, is approximately Normal with a mean of 58.2 shells and a standard deviation of 12.8 shells. The number of shells Thomas collects on any given day, T, is approximately Normal with a mean of 47.9 shells and a standard deviation of 11.5 shells. Assume the two random variables are independent of each other.
What is the probability that on a randomly selected day the total number of shells collected by Renee and Thomas is 120 or more?
0.002
0.209
0.284
0.791
Transcribed Image Text:Renee and Thomas live at the beach and collect seashells. The number of shells Renee collects on any given day,
R, is approximately Normal with a mean of 58.2 shells and a standard deviation of 12.8 shells. The number of shells
Thomas collects on any given day, 7, is approximately Normal with a mean of 47.9 shells and a standard deviation
of 11.5 shells. Assume the two random variables are independent of each other.
What is the probability that on a randomly selected day the total number of shells collected by Renee and Thomas is
120 or more?
0.002
0.209
0.284
0.791
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