Question Help The average income tax refund for the 2009 tax year was $3057. Assume the refund per person follows the normal probability distribution with a standard deviation of $901. Complete parts a through d below. a. What is the probability that a randomly selected tax return refund will be more than $2300? .7996 (Round to four decimal places as needed.) b. What is the probability that a randomly selected tax return refund will be between $1500 and $2200? (Round to four decimal places as needed.) Untitl click Check Answer Enter your answer in the answer box d then