Answer :
To find the mean of 99, 100, 101, 101, and 102, add them to get 503, and then divide by 5, resulting in a mean of 100.6.
To calculate the mean of a set of numbers, you sum all the numbers together and then divide the total by the number of items in the set. In the student's case, the numbers given are 99, 100, 101, 101, and 102. Adding these together gives a total of 503 (99+100+101+101+102=503). Since there are 5 numbers in this set, you would then divide 503 by 5.
The mean would therefore be calculated as follows:
503 \/ 5 = 100.6
The mean of the numbers 99, 100, 101, 101, and 102 is 100.6.
