A random sample of 100 observations from a normally distributed population possesses a mean equal to 91.7 and a standard deviation equal to 6.3. Use this information to complete parts a through e below.

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

The krasnapolski is a top-of-the-line hotel in amsterdam, the netherlands. among their many services, they rent bicycles to guests. the bicycle checkout is open 24 hours per day 7 days per week and has 50 bicycles on hand. on average, 10 guests request a bicycle each day, arriving completely randomly at all times of the day during the spring and summer seasons. guests keep bicycles for four days on average, with a standard deviation of two days. how long does a guest on average have to wait for a bike? a. approximately 24 hours b. approximately 0.033 hours c. approximately 4 days d. approximately 47 minutes

A. what does the point (4, 122) represent? b. what is the unit rate? c. what is the cost of buying 10 tickets?