Mathematics, 29.01.2021 16:40 samanthalopez11
A company that has a large number of supermarket grocery stores claims that customers who pay by personal check spend an average of $87 on groceries at these stores with a S. D. of $22. Assume that the expenses incurred on groceries by all such customers at these stores are normally distributed.
a. Find the probability that a randomly selected customer who pays by check spends more than $114 on groceries.
b. What percentage of customers paying by check spend between $40 and $60 on groceries?
c. What percentage of customers paying by check spend between $70 and $105?
d. Is it possible for a customer paying by check to spend more than $185? Explain.
Answers: 1
Mathematics, 21.06.2019 16:00, ljcervantes4824
Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.
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Mathematics, 21.06.2019 19:00, Keekee9847
What is the equation of the line in point-slope form? y+ 4 = 1/2(x+4) y-4 = 1/2(x + 4) y-0 = 2(x - 4) y-4 = 2(8-0)
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