Don't be childish I will report thanks

The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%

Find an equation for the linear function which has slope -10 and x-intercept -7

How can you find the mean absolute deviation (mad) for this set of data?