Two: 83 and 89.
The numbers 80, 81, 82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99 and 100 are composite (including the boundaries).
80, 81, 82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99, 100, 102, 104, 105, 106, 108, 110.
It is: 100 and not 90
90
The mean is 85.5 The median is 88.5 The mode is 90
(79, 81, 82, 91, 93, 95, 95) The mean is 88 The mode is 95 The median is 91
95 90*7=630 90+88+95+93+87+82+_=630 630-535=_ _=95
The median is 87.
The mean is 83.
There is no number that occurs more than all others, but 90 and 95 both appear twice, so they both can be said to be the mode.
82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
For 77 83 69 72 85 90 95 75 55 45: σ=15.4071
90.
It is: (76+83)/2 = 79.5
95 appears more times than any other number, so it is the mode.
mode = noneMode is the number that is repeated more often.