Based on the given, the answer to this question is D. 4,5,5. In order to compute the mean, all of the data should be added together. The sum will then be divided by the total number of figures that are given. The median will require you to put all of the figures in order. Based on the numbers, find the middle value.
The mode is the number which will appear most in the given data. Let us use the given above to test the answer. To find the mean, you can add the following: 4+5+6+1+1+2+5+7+5 =36/9 =4. This means that the mean is 4. For median, it will be 1, 1, 2, 4, (5,) 5, 5, 6, 7 =5. For the mode, the answer is also 5 as it appears 3 times in the given.