It is:- (86+89)/2 = 87.5
It is 89, the value halfway between the two middle values.
86
idk
86
For 98 78 86 88 84 81 93 92 89 and 81: σ=6.2361
Put them in order, least to greatest. 62, 78, 84, 89, 94, 94, 96, 98 The range is the smallest subtracted from the largest. 98 - 62 = 36 The range is 36. The median is the average of the middle two. 89 + 94 = 183 divided by 2 = 91.5 The median is 91.5
The idea is to sort the numbers, and pick the number in the middle as the median. In cases like this, when you have two numbers in the middle (the size of the set is even), take the average of those two numbers.
They are: 62 63 64 65 66 68 69 70 72 74 75 76 77 78 80 81 82 84 85 86 87 88.
167
78 x 89 = 6942
the median is 785
The LCM is 6942.