The Finnish Tax Administration reported the average refund in 2022 was $2,878 with a standard eviation of $520; the amount refunded is normally distributed. What percent of the refunds are more than $3,500? What percent of the refunds are more than $3,500 but less than $4,000? What percent of the refunds are more than $2,400 but less than $4,000?

Intermediate Algebra
19th Edition
ISBN:9780998625720
Author:Lynn Marecek
Publisher:Lynn Marecek
Chapter12: Sequences, Series And Binomial Theorem
Section12.3: Geometric Sequences And Series
Problem 12.57TI: What is the total effect on the economy of a government tax rebate of $1,000 to each household in...
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3) The Finnish Tax Administration reported the average refund in 2022 was $2,878 with a standard
deviation of $520; the amount refunded is normally distributed.
a) What percent of the refunds are more than $3,500?
b) What percent of the refunds are more than $3,500 but less than $4,000?
c) What percent of the refunds are more than $2,400 but less than $4,000?
Transcribed Image Text:3) The Finnish Tax Administration reported the average refund in 2022 was $2,878 with a standard deviation of $520; the amount refunded is normally distributed. a) What percent of the refunds are more than $3,500? b) What percent of the refunds are more than $3,500 but less than $4,000? c) What percent of the refunds are more than $2,400 but less than $4,000?
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