Problem
A student survey asked "What is the length of your forearm (in inches)?". Here is the data (in inches): \[ 8,15,10,7,15,10,16,9,13 \] What is the mean length (in inches)? (Round your answer to 2 decimals.) Your Answer: Answer units
Solution
Step 1 ：\( \text{Mean} = \frac{\text{Sum of data}}{\text{Number of data values}} \)
Step 2 ：\( \frac{8+15+10+7+15+10+16+9+13}{9} \)
Step 3 ：\( \frac{103}{9} \approx 11.44 \)
