Respuesta :
The average speed in miles per hour for the round trip is (D) 47.5.
What do we mean by average?
- In layman's terms, an average is a single number chosen to represent a set of numbers, typically the sum of the numbers divided by the number of numbers in the set (the arithmetic mean).
- The average of the numbers 2, 3, 4, 7, and 9 (summed to 25) is 5, for example.
- An average could be another statistic, such as the median or mode, depending on the context.
- For example, the average personal income is frequently given as the median—the number below which 50% of personal incomes fall and above which 50% of personal incomes fall—because the mean would be misleadingly high if a few billionaires' personal incomes were included.
To find the average speed:
- 30 miles + 65 miles = 95
Formula: Sum of terms/Number of terms
- 95/2 = 47.5
Therefore, the average speed in miles per hour for the round trip is (D) 47.5.
Know more about averages here:
https://brainly.com/question/20118982
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