Make a box-and-whisker plot of the data. Find the interquartile range.
7,9,11, 12, 13, 15, 12, 17, 18, 12,9,7,12, 15, 18, 10
6
7
8
9
10
11 12 13 14
15 16 17 18 19
Interquartile range: 5.5
1 12 13 14
15 16
17 18 19
Interquartile range: 5
14
15 16
17 18 19
6 7 8 9 10 11 12 13
Interquartile range: 5
6 7 8 9 10 11 12 13 14 15 16 17 18 19
Interquartile range: 5.5

Which function has an inverse function? a.f(x)= |x+3|/5 b. f(x)= x^5-3 c. f(x)= x^4/7+27 d. f(x)= 1/x²

Ftara spends $219 a month for her car payment and she makes $3,200 a month, what percent of her monthly income is spent on her car payment?

If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: minus2.00, minus1.00, 0, 1.00, 2.00? why? a. the z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores. b. the z score of 0 is most preferable because it corresponds to a test score equal to the mean. c. the z score of minus2.00 is most preferable because it is 2.00 standard deviations below the mean and would correspond to the highest of the five different possible test scores. d. the z score of minus1.00 is most preferable because it is 1.00 standard deviation below the mean and would correspond to an above average