Question

The following frequency table shows the number of Kai's pictures that have been published in each of the local newspapers. Find the mean number of pictures. Number of pictures Number of newspapers 0 1 1 0 2 0 3 2 4 1

Answer 1

The mean number of pictures is 2.

To find the mean (average) number of pictures, you can use the formula:

Mean= Sum of all values/ Number of values

​Now, calculate the sum of the products of the number of pictures and the corresponding frequency:

Sum=(0×1)+(1×0)+(2×0)+(3×2)+(4×1)

Sum=0+0+0+6+4

Sum=10

Now, calculate the mean:

Mean= 10/5

Mean=2

So, the mean number of pictures is 2.

Question

The following frequency table shows the number of Kai's pictures that have been published in each of the local newspapers. Find the mean number of pictures.