how do you do part a of question 9 and then question 10

9. [1/2 Points] DETAILS PREVIOUS ANSWERS 4/100 Submissions Used MY NOTES PRACTICE ANOTHER For a standard normal distribution, (a) What z-value separates the top 7% of the probability from the remainder of the distribution? S X I: 1.47580 (4 decimal places) (b) What is the probability between -2.111 and 0.409? .3239 y I: 0.32388 (4 decimal places) Submit Answer ' 10. [-I1 Points] DETAILS OIIOO Submissions Used PRACTICE ANOTHER Historically, 78% of credit card users carry a balance from month-to-month. A certain credit card company would like to study the spending patterns of its cardholders in more detail and to start the analysis, takes a random sample of 123 cardholders. What is the probability more than 76% of these cardholders are carrying a balance? \\:I (Use 4 decimals.)