The Bank of Connecticut issues Visa and MasterCard credit cards. It is estimated that the balances on all Visa credit cards issued by the Bank of Connecticut have a mean of$830and a standard deviation of$270. Assume that the balances on all these Visa cards follow a normal distribution.

a.What is the probability that a randomly selected Visa card issued by this bank has a balance between

$1050and$1410?

Round your answer to three decimal places

b.What percentage of the Visa cards issued by this bank have a balance of$740

or more?

Round your answer to two decimal places.