URGENT Find and interpret the range of the points earned.

Points Earned
15 12 17 8
21 20 6 9

Find and Interpret the interquartile range of the points earned.

Use the IQR to identify any outliers of the data set.

(a) (8%) compute the probability of an even integer among the 100 integers 1! , 2! , 3! , until 100! (here n! is n factorial or n*(n-1)*(n-2) *… 1) (b) (16%) compute the probability of an even integer among the 100 integers: 1, 1+2, 1+2+3, 1+2+3+4, …., 1+2+3+… + 99, and 1+2+3+… + 100

Nine more than four times a number is the same as one less than twice the number. find the number?

Ten times the square of a non-zero number is eqaul to ninety times the number