Finding the missing value to calculate the mean time using a table of daily school commute times.

A math worksheet showing a table of time taken by Joe to reach school each day, with the mean time given as 15 minutes, asking to find the missing time for Wednesday.

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Show Answer Key & Explanations Step-by-step solution for: How To Find Mean, Median & Mode In Excel (with Examples)?

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- The mean is given as 15 minutes.
- The mean is calculated as: Total time ÷ Number of days.
- There are 5 days (Monday, Tuesday, Wednesday, Thursday, Friday), so the number of days is 5.
- Therefore, Total time = Mean × Number of days = 15 × 5 = 75 minutes.
- The times for the other days are: Monday = 20, Tuesday = 15, Thursday = 14, Friday = 9.
- Sum of known times = 20 + 15 + 14 + 9 = 58 minutes.
- Time taken on Wednesday = Total time − Sum of known times = 75 − 58 = 17 minutes.

Answer: 17 minutes

Parent Tip: Review the logic above to help your child master the concept of mean median mode calculation.

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