I am having some trouble figuring out these two problems.

Question

1. Calculate the mean, median, mode, range, and midrange for the data set given {-1, 7, 0, 14, -2, -15, 0, 8, 7}
Mean=2
Median=7
Mode=0, and 7
Range=
Midrange=

2. Calculate the mean, range, variance, standard deviation, interquartile range for the data set given {-1, 0, 1, 0, -1, 0, 1, 0, -1, 0, 1, 0}
Mean=0
Range=
Variance=
Standard deviation=
Interquartile range=

Answer 1

I'm not sure with some of them but to find the range take the highest number (maximum) and subtract the lowest number (minimum).