Minutes Studying Test Grade
20 65
22 65
25 50
25 52
30 55
30 68
45 70
45 69
60 75
75 80
90 78
90 83
90 85
100 88
100 78
110 95
120 96
120 100
150 91
Which equation is closest to the line of best fit?

A) y = -1/3x-52

B) y = 1/3x+52

C) y = -52x+1/3

D) y = 52x- 1/3

Adiverr from the university of florida women’s swimming and diving team is competing in the ncaa zone b championships

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth

An annual marathon covers a route that has a distance of approximately 26 miles. winning times for this marathon are all over 2 hours. the following data are the minutes over 2 hours for the winning male runners over two periods of 20 years each. earlier period 14 12 15 22 13 10 19 13 9 14 20 18 16 20 23 12 18 17 6 13 recent period 7 11 7 14 8 9 11 14 8 7 9 8 7 9 9 9 9 8 10 8 (a) make a stem-and-leaf display for the minutes over 2 hours of the winning times for the earlier period. use two lines per stem. (use the tens digit as the stem and the ones digit as the leaf. enter none in any unused answer blanks. for more details, view how to split a stem.) minutes beyond 2 hours earlier period 0 1 2 (b) make a stem-and-leaf display for the minutes over 2 hours of the winning times for the recent period. use two lines per stem. (use the tens digit as the stem and the ones digit as the leaf. enter none in any unused answer blanks.) minutes beyond 2 hours recent period (c) compare the two distributions. how many times under 15 minutes are in each distribution