What happens to the mean of the data set {2, 4, 7, 6, 3, 6, 7} if the number 25 is added? the mean a number here by a number here .

The mean will increase by 2.5

Step-by-step explanation:

The mean is just another word for the average of the data set. You can find this by adding all of the values and dividing by the number of values there are. (i.e 2+4+7+6+3+6+7 divided by 7). The original mean is 5. If you add 25, the average will increase to 7.5

x = 12

y = 15

step-by-step explanation: