PSAT Math Grid-Ins Question 91: Answer and Explanation
Question: 91
The following table shows the number of babies born in a certain hospital in October 2018. The table categorizes the births by whether the mother participated in a new prenatal program and whether the baby was below, above, or within the healthy weight range as defined by the World Health Organization.
| Below Range | Within Range | Above Range | Total | |
|---|---|---|---|---|
| Participant | 1 | 55 | 10 | 66 |
| Not a Participant | 8 | 49 | 5 | 62 |
| Total | 9 | 104 | 15 | 128 |
The at-risk group is defined as all babies above or below the healthy weight range. What percent of the babies born at this hospital in October 2018 were considered at-risk? Round your answer to the nearest whole number and ignore the percent sign when gridding your response.
Correct Answer: 19
Explanation:
19
Difficulty: Easy
Category: Tables and Graphs
Getting to the Answer: There are 9 babies below the healthy range and 15 babies above, so there are 9 + 15 = 24 total babies who fall above or below the range. There are 128 babies total, which means that 
of all the babies born at this hospital in 2018 were considered at-risk. Grid in 19.
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