Question

What is the mean of the data?Number of Letters inOur First Name3 XX4 XX5 XXXX6 X7 X8 X I keep getting 3 but it was marked wrong with the correct answer of 5. Where am I going wrong?

Answer 1

Mean = 5

Step-by-step explanation

The mean is the average of the distribution. It is obtained mathematically as the sum of variables divided by the number of variables.

Mean = (Σx)/N

x = each variable

Σx = Sum of the variables

N = number of variables

Since the number of X in front of each number denotes how many times that number occurs,

Σx = 3 + 3 + 4 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 8 = 55

N = Total number of X = 11

Mean = (Σx)/N

Mean = (55/11) = 5

Hope this Helps!!!