According to a government study among adults in the 25- to 34-year age group, the mean amount spent per year on reading and entertainment is $2,060. Assume that the distribution of the amounts spent follows the normal distribution with a standard deviation of $495.(Round z-score computation to 2 decimal places and your final answers to 2 decimal places.)

a.What percent of the adults spend more than $2,575 per year on reading and entertainment?

Percent%

b.What percent spend between $2,575 and $3,300 per year on reading and entertainment?

Percent%

c.What percent spend less than $1,225 per year on reading and entertainment?

Percent%