According to the IRS, tax refunds one year averaged $1332 with a standard deviation of $725. Assuming that tax refunds are normally distributed, what is the probability that a randomly selected tax payer will: a.receive a refund greater than $2,000? b.owe money to the IRS? (i.e. have a refund less than zero.) c.receive a refund between $100 and $700? Answer all parts please