The average amount parents and children spent per child on back-to-school clothes in Autumn 2010 was $527. Assume the standard deviation is $160 and that the amount spent is normally distributed.
What is the probability that the amount spent on a randomly selected child is more than $700? (Round to four decimal places)
What is the probability that the amount spent on a randomly selected child is less than $100? (Round to four decimal places)
What is the probability that the amount spent on a randomly selected child is between $450 and $700? (Round to four decimal places)
What is the probability that the amount spent on a randomly selected child is no more than $300? (Round to four decimal places)
