if you have a mean of 76 and a standard deviation of 4; what would be the high and low scores of deviation

Which statements are true? see picture

Question and answers are in the attached picture. you so much in advance.

Choose a second initial value that is 0.01 greater than the initial value from question 9. iterate it using the function, f, ten times. if necessary, you can round your results to the nearest ten-thousandth.