Miranda wants to buy pencils printed with the school mascot. The
graph below represents the cost for different numbers of pencils.
Pencil Cost
Cost (S)
50 100 150 200 250
Number of pencils
what is the cost per pencil

Ineed to learn how to solve this problem

Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean

100 points, hi, i’m not sure what to do here,the data doesn’t seem to be quadratic .? can anyone me, in advance