Question

The graph shows the number of minutes, to the nearest five minutes, that Sarah spent getting ready for school each morning.

Today, she’s wakes up late and gets ready for school in 15 minutes. If this new point is added to the graph, which statement is true?

-The mean will decrease, and the median will stay the same.
-the median will decrease, and the mean will stay the same.
-the mean will decrease more than the median, but both will decrease.
-the median will decrease more than the mean, but both will decrease.

Answer 1

Answer:The mean will decrease, and the median will stay the same.

Explanation:

Answer 2

-The mean will decrease, and the median will stay the same.

Explanation:

Before the point was added, the median was 45. The middle point is the 7th point The 7th point was 45. Now there are 14 points. We add the 7th and 8th points together and divide by 2 (Remember to place a point at 15) (45+45) /2 The median stays at 45

Choice A is the only answer in which the median stays the same