2000 freshmen at State University took a biology test. The scores were distributed normally with a mean of 70 and a standard deviation
of 5. Label the mean and three standard deviations from the mean.
55
60
65
70
75
80
85
What percentage of the class scored a 70 or above?
%

Astore has clearance items that have been marked down by 60%. they are having a sale, advertising an additional 55% off clearance items. what percent of the original price do you end up paying?

Math it's appreciated. (picture provided)

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?