SOLUTION: Consumers spend an average of $21 per week in cash
without being aware of where it goes (data extracted from
“Snapshots: A Hole in Our Pockets,” USA Today, January
18, 2010, p.
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-> SOLUTION: Consumers spend an average of $21 per week in cash
without being aware of where it goes (data extracted from
“Snapshots: A Hole in Our Pockets,” USA Today, January
18, 2010, p.
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Question 768686: Consumers spend an average of $21 per week in cash
without being aware of where it goes (data extracted from
“Snapshots: A Hole in Our Pockets,” USA Today, January
18, 2010, p. 1A). Assume that the amount of cash spent
without being aware of where it goes is normally distributed
and that the standard deviation is $5.
a. What is the probability that a randomly selected person
will spend more than $25?
b. What is the probability that a randomly selected person
will spend between $10 and $20?
c. Between what two values will the middle 95% of the
amounts of cash spent fall? Answer by mtorres100(1) (Show Source):
(