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The average amount of money individuals spend during Christmas season is $1,740. Assume the standard deviation...

The average amount of money individuals spend during Christmas season is $1,740. Assume the standard deviation is $320 and the average amount of money individuals spend during Christmas season is normally distributed. Find the probability that for a sample of 32 individuals, they will spend an average:

a) Between $1,600 and $1,850 during Christmas season

b) More than $1820 during Christmas season

Math   Statistics-And-Probability   
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