Question

in 1975, the number of high school dropouts in a country was 5217 thousand. By 2004, this number had decreased to 3118 thousand, Find and interpret the average rate of change per year in the number of high school dropouts.Select the correct choice below and in the answer boxes to complete your choice(Round to the nearest as needed)OA The wverage rate of charge la about thousand each year. The number of high school dropouts increased by an average of about thousand in the year 200401. The average rate of change is about thousand each year. The number of high school dropouts decreased by an average of about thousand in the year 2004OC. The wverage rate of change in about thousand each year. The number of high school dropouts increased by an average of about thousand each year from 1975 to 2004OD The average rate of change is about thousand each year. The number of high school dropouts decreased by an average of about thousand each year from 1975 to 2004

Answer 1

Given:The number of high school dropouts in a country in year 1975 was 5217 thousand

The number of high school dropouts in year 2004 was decreased to 3118 thousand.

We have to calculate average rate of change per year in the number of high school dropouts.

Average rate of change per year is given as:

`=\frac{\text{Change in number of dropouts}}{\text{difference in the year}}`

Therefore,

Average rate of change per year is:

`=(3118-5217)/(2004-1975)`
`=(-2099)/(29)`
`=-72.379`

Therefore, the average rate of change per year is decreased by 72.379 thousand.

Hence,option d is correct.