I need step by step how to do it on excel as well.

#1. In a distribution with a mean of 100 and a standard deviation of 15, what is the probability that a score will be 115 or higher? Provide an explanation.

#2.If a distribution has a mean of 25 and a standard deviation of 2, what value would be -4 standard deviations from the mean? Include your calculations.

#3.If a distribution has a mean of 30 and a standard deviation of 5, how many standard deviations is 60 from the mean? Include your calculations.

#4. Use the datasetHW_Dataset3, variable PSS. Find and report a z-score for a mode. Include your calculations.

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