U$.$S$.$ consumers are increasingly viewing debit cards as a convenient substitute for cash and checks. The average amount spent

annually on a debit card is $$7,630.$ Assume that the average amount spent on a debit card is normally distributed with a standard

deviation of $$600.$

a$-1.$ A consumer advocate comments that the majority of consumers spend over $$8,000$ on a debit card.

Note: Round your final answer to $4$ decimal places.

The proportion of consumers who spend over $$8,000$