Answered

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Today, she 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.

Sagot :

cb0009

Answer:

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

Step-by-step 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

akposevictor

The statement that is true about the dot plot is: mean decreases, and the median stays the same.

What is the Mean and Median?

Mean of a data distribution is simply the average of the data points, while the median is the center of the data.

If a new data set is added to the initial mean of a data distribution, and the data point added is way below the initial mean and median, the new mean will decrease.

Therefore, adding 15 to the data distribution, would make the mean reduce while the middle value would be 45.

Thus, the statement that is true about the dot plot is: mean decreases, and the median stays the same.

Learn more about the mean and median on:

https://brainly.com/question/14532771

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