The times that college students spend studying per week have a distribution that is skewed to the right with a mean of 7

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The times that college students spend studying per week have adistribution that is skewed to the right with a mean of 7.2hours and a standard deviation of 2.4 hours. Find theprobability that the mean time spent studying per week for a randomsample of 4848 students would be
1. between 6.9 and 7.5 hours:
2. less than 6.9 hours:
Note 1: Round your 𝑧 values to 2 decimal places beforelooking them up in the table or using them in a calculator.
Note 2: Keep 4 decimal places in your final answers.