The following table shows the number of males (M) and females (F) (in thousands) in Towns X and Y…
The average number of females in Town X is 255/5 = 51, and 2018 and 2019 with 49 each fall below it, giving two years. The average in Town Y is 267/5 = 53.4, and 2018 with…
Choose your answer
The following table shows the number of males (M) and females (F) (in thousands) in Towns X and Y during the five years from 2018 to 2022. Based on the data in the table, answer the question.
| years | Town X | Town Y | ||
|---|---|---|---|---|
| number of males | number of females | number of males | number of females | |
| 2018 | 50 | 49 | 53 | 50 |
| 2019 | 52 | 49 | 54 | 52 |
| 2020 | 55 | 52 | 55 | 54 |
| 2021 | 53 | 53 | 58 | 56 |
| 2022 | 55 | 52 | 62 | 55 |
Question: Find, separately for Town X and Town Y, the number of years in which the female population is below that town's average female population over the years shown. Give the counts for X and Y, respectively.
Answer and explanation
Correct answer B
The average number of females in Town X is 255/5 = 51, and 2018 and 2019 with 49 each fall below it, giving two years. The average in Town Y is 267/5 = 53.4, and 2018 with 50 and 2019 with 52 fall below it, again two years. Hence the answer is two and two.
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