Your mean difference from the target time is represented by the expression ((-2) + (-3) + (-2) + (-1) + (-2)) ÷ 5. Your mean difference from the target time is represented by the v... Your mean difference from the target time is represented by the expression ((-2) + (-3) + (-2) + (-1) + (-2)) ÷ 5. Your mean difference from the target time is represented by the value ____ second(s).
Understand the Problem
The question involves calculating the mean difference from a target time based on a provided expression that sums up several values and divides by the total number of runs. We need to fill in the value for the mean difference based on the calculations.
Answer
Your mean difference from the target time is $-2$ seconds.
Answer for screen readers
Your mean difference from the target time is represented by the value $-2$ second(s).
Steps to Solve
- Calculate the Sum of Values First, we need to compute the sum of the values in the expression:
$$ (-2) + (-3) + (-2) + (-1) + (-2) $$
Adding these values together:
$$ -2 - 3 - 2 - 1 - 2 = -10 $$
- Divide by Total Number of Runs Next, we will divide the total from the previous step by the number of runs, which is 5:
$$ \frac{-10}{5} $$
Calculating this gives:
$$ -2 $$
- Result Interpretation This result means that the mean difference from the target time is -2 seconds.
Your mean difference from the target time is represented by the value $-2$ second(s).
More Information
The mean difference of $-2$ seconds indicates that, on average, the runs fell short of the target time by 2 seconds. This calculation is essential for understanding performance against a target.
Tips
- Forgetting to include negative signs when adding negative numbers. Always ensure to maintain the signs during the addition.
- Confusing the number of runs with the sum of values; ensure you divide by the correct count.
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