Answer:
With a score of 70, he scored better than 50% of the people who took the test.
Explanation:
What a percentile means?
When a value V is said to be in the xth percentile of a set, x% of the values in the set are lower than V and (100-x)% of the values in the set are higher than V.
What does it mean that an individual makes a 70 on a test and this score corresponds to the 50th percentile?
It means that 50% of the students scored 70 or higher, and 50% of the students scored 70 or lower.
So the correct answer is:
With a score of 70, he scored better than 50% of the people who took the test.