Kelly likes to fish at the lake near her house. She caught 8 fish last week, measured them, and put them back in the lake. The lengths of the fish, in inches, are shown.
9, 12, 10, 8, 11, 12, 13, 6
Assuming this data is representative of the fish in the lake, what is the mean length of the fish in the lake?
A.
10.5 inches
B.
3.5 inches
C.
1.875 inches
D.
10.125 inches
To find the mean length of the fish, we need to sum up all the lengths and then divide by the number of fish.
Sum of lengths = 9 + 12 + 10 + 8 + 11 + 12 + 13 + 6 = 81
Number of fish = 8
Mean length = Sum of lengths / Number of fish = 81 / 8 = 10.125
Therefore, the mean length of the fish in the lake is 10.125 inches.
The answer is D. 10.125 inches.
To find the mean length of the fish in the lake, we need to add up the lengths of all the fish and divide by the total number of fish.
Step 1: Calculate the sum of the lengths of the fish.
9 + 12 + 10 + 8 + 11 + 12 + 13 + 6 = 81
Step 2: Count the number of fish.
There were 8 fish caught.
Step 3: Divide the sum of the lengths by the number of fish.
81 / 8 = 10.125
Therefore, the mean length of the fish in the lake is 10.125 inches.
The correct answer is D. 10.125 inches.
To find the mean length of the fish in the lake, you need to calculate the average length. Here's how you can do it step by step:
1. Add up the lengths of all the fish: 9 + 12 + 10 + 8 + 11 + 12 + 13 + 6 = 81.
2. There are 8 fish in total, so divide the sum by 8 to find the average length: 81 / 8 = 10.125.
Therefore, the mean length of the fish in the lake is 10.125 inches.
So, the correct answer is option D. 10.125 inches.