Question

A college football coach wants to know if the is a correlation between his players' leg strength and the time it takes for them to sprint 40 yards. he sets up the following test and records the data:

Every day for a week, he counts how many times each player can leg press 350 pounds. The following week, he has each player sprint 40 yards every day. The tables shows the average number of leg-press repetitions and the average 40-yard dash time (in seconds) for seven randomly selected players. What is the equation of the line of best fit? How many seconds should he expect a player to take to

Answer 1

run 40 yards if that player can do 22 leg-press repetitions?

Leg Press (reps)|40-yard Dash (s)
15 |5.2
18 |6.3
8 |6.8
30 |8.2
26 |8.0
12 |5.3
21 |5.9

Answer 2

well, plot the values
x are number of leg lifts and y are dash time

then draw a best fit line, preferably running through 2 known points

use the 2 points to determine the slope of the line

and use the slope of the line to solve your problem

Answer 3

y=4.536+0.107•x is this right

Answer 4

incredibly hard to say

there is no right best fit line

if your lines looks like it goes through the center of all the plotted points, then id say yes

but i didnt actually plot your data or draw the line so i cant say for certain

Answer 5

would the next step be multiplying and would it be y=4.536+0.107•22

Answer 6

i dont know cause the problem you posted is incomplete

Answer 7

if its asking for dash time if leg strength is 22, then yes