Talar has a bag with 80 colored marbles. She randomly draws 15 marbles, counts the number of purple marbles, and then replaces the marbles. She repeats this process 10 times. The following list shows the number of purple marbles Talar drew on each attempt.
9 5 10 8 13 11 9 7 8 10
What is the best estimate for the total number of purple marbles in the bag?
Responses
A 9
B 24
C 48
D 72
C 48
To calculate the best estimate for the total number of purple marbles in the bag, we can take the average of the number of purple marbles drawn in each attempt.
(9+5+10+8+13+11+9+7+8+10) / 10 = 80 / 10 = 8
So, the best estimate for the total number of purple marbles in the bag is 8 x 80 = 48.