Shandra's math teacher plots student grades on their weekly quizzes against the number of hours they say they study on the pair of coordinate axes and then draws
the line of best fit. Based on the line of best it, what quiz score should someone who
studied 5 hours expect?

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

I'm confused on this could anyone me and show me what i need to do to solve it.

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?