A group of 14 students plans to participate in a free-throw competition to see how long it takes them to make 30 free-throws. The dot plots show the data before and after training.

can i see a picture of the dot plots pls

Step-by-step explanation:

it would help

The mean time the students took to finish the 30 free-throws decreased by about 3 seconds after training.

Step-by-step explanation:

if you add up all of the nubers with the times   10+10+9+9+9+8+8+8+8+7+7+7+6+5

then divied  by 14

and you will get about 8

then you will add

8+7+7+6+5+5+5+5+4+4+4+3+3+2

and you will get68 than devide by 14

and you will get about 5  so than you will do

8-5 and you will get 3

i cant see the graph

step-by-step explanation: