Find mean of group A and B (tenth) and find the difference

Answer 1

To find the mean of the two groups and calculate the difference, we first need to list the data from groups A and B:

Group A: 7, 9, 11, 13, 15
Group B: 4, 6, 8, 10, 12

Next, we calculate the mean of each group:

Mean of Group A = (7 + 9 + 11 + 13 + 15) / 5 = 55 / 5 = 11
Mean of Group B = (4 + 6 + 8 + 10 + 12) / 5 = 40 / 5 = 8

Now, we find the difference between the mean of Group A and Group B:

Difference = Mean of Group A - Mean of Group B = 11 - 8 = 3

Therefore, the mean of Group A is 11, the mean of Group B is 8, and the difference between the two means is 3.