Koda wants to know the proportion of students at his school who watch a certain TV show. He interviews a random sample of students at his

school. He finds that 35% of the students in the sample watch the show.

What conclusion can he draw from the sample?

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?