93
11 + 87 + 19 = 117 117 / 3 = 3939.
88
90
You add up the numbers, then divide by how many numbers you added. Here there are 4 numbers to add up: 81+83+87+85. Use a calculator or do longhand. Then divide the sum by 4 to get the average.
The average is (98+87)/2 = 92.5
The median is the average of 85 and 87, that is 86.The median is the average of 85 and 87, that is 86.The median is the average of 85 and 87, that is 86.The median is the average of 85 and 87, that is 86.
89
The average of 79, 84, 82, and 87 is 83.
(87 + 84) ÷ 2 = 85.5 is the average.
The average is 87,
69.5
If he wants a 90% average for the four tests, the least he can afford to get on thefourth one is 99%.(87 + 87 + 87 + 99) / 4 = 360/4 = 90%Good luck !
93
117
An average person's IQ is 100; 75 percent of the population has an IQ higher than 90. 87 IQ is considered "low average."
83 + 87 + 91 + 95 = 356, 356 / 4 = 89. The average of those 4 numbers is 89. You add all of the numbers together and then divide that sum by the number of values.