4.(06.06 LC) The graph below plots the values of y for different values of x:
40
30
20
10
10
20
30
40
50
What is the correlation coefficient for the data plotted? (5 points)
-0.2
-0.8
0.8
0.2

Jessa bought a yoyo from a company that claims that, with each retraction, the string rolls up by 60% of the original length. she sets up a tape measure and throws the yoyo 3 times. her data are charted below. throw length of string (feet) 1 3 2 1.8 3 1.08 jessa wants to find the sum of the length of string after 10 throws. what is the sum of the lengths, rounded to the nearest hundredth?