The data table contains frequency distribution of the heights of the players in a basketball league.
a. Calculate the mean and standard deviation of this population.
b. What is the probability that a sample mean of 30 players will be less than 68 in.?
c. What is the probability that a sample mean of 30 players will be more than 69.5 in.?
d. What is the probability that a sample mean of 30 players will be between 68.5 and 70 in.?
Click the icon to view the data table of heights.
a. The population mean is 69.3.
(Round to one decimal place as needed.)
The population standard deviation is 4.64.
(Round to two decimal places as needed.)
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b. The probability that the sample mean will be less than 68 is 0.0192.
(Round to four decimal places as needed.)
c. The probability that the sample mean will be more than 69.5 is
(Round to four decimal places as needed.)

Please do PART D too , help!