Question

A Study found that consumers spend an average of $21 per week in cash without being aware of where it goes. Assume that the amount of cash spent without being aware it goes is normally distributed and that the standard deviation is $4.

A) what is the probability that a randomly selected will spend more that $23?

P(x>$23)=

round to four decimal places as needed.

B) what is the probability that a randomly selected person will spend between $10 and $18.

P($10<X<$18)=

round to four decimal places as needed.

C) Between what two values will the middle 95% of the amounts of cash spent fall?

The middle 95% of the amounts of cash spent will fall between X=$ and X=$

Round to the nearest cent as needed.

Answer 1