It is 87
Add up the numbers, then divide by the number of numbers. Answer: 80
80, 81, 82, 84, 85, 86, 87, 88, 90
The median is 78.
88% of 80= 88% * 80= 0.88 * 80= 70.4
The mean of the data is 80.
It is 87
Add up the numbers, then divide by the number of numbers. Answer: 80
The median is 87.
When they ask for the 'mean' they are really asking for the average of all those numbers. All you have to do is add those up: 76+54+92+88+76+88+75+93+92+68+88+76+76+88+80+70+88+72= 1440 And then divide by how many numbers we added up. In this case, we added up 18 different numbers. So: 1440 / 18 = 80 80 is your 'mean' or average number.
When the data is arranged in ascending order, the middle numbers are 88 and 90. Take the mean of these, which is 89, as the median.
Sort the numbers into numerical order:54, 68, 70, 72, 75, 76, 76, 76, 80, 88, 88, 88, 88, 92, 92, 93The median is the middle number which as there are 16 numbers is the mean of the middle two (highlighted above):median = (76 + 80) ÷ 2 = 78.
The composite numbers are: 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86 ,87, 88
80, 81, 82, 84, 85, 86, 87, 88, 90
80, 81, 82, 84, 85, 86, 87, 88, 90
88
81, 82, 84, 85, 86, 87, 88