For 98 78 86 88 84 81 93 92 89 and 81: σ=6.2361
For 72 68 64 90 80 84 78 75 76 77: σ=7.4863
The cumulative probability up to the mean plus 1 standard deviation for a Normal distribution - not any distribution - is 84%. The reference is any table (or on-line version) of z-scores for the standard normal distribution.
yes
The mean.The mean.The mean.The mean.
75.5 approx.75.5 approx.75.5 approx.75.5 approx.
For 72 68 64 90 80 84 78 75 76 77: σ=7.4863
For the numbers 4, 43, 63, 84, 54, 84 and 1, the standard deviation is 34.20943896 and the mean is 47.57142857.
400 - 78 - 22 --84 - 16 - 81 - 19 - 27 = 400 - 78 - 22 + 84 - 16 - 81 - 19 - 27 = 241
83
78 appears more than any other number, so it is the mode.
The variance of 73 72 67 74 78 84 79 71 76 76 79 81 75 80 78 76 78 = 16.8456
The cumulative probability up to the mean plus 1 standard deviation for a Normal distribution - not any distribution - is 84%. The reference is any table (or on-line version) of z-scores for the standard normal distribution.
Floors 78 to 84....floor 81 was the impact zone.
yes
81 - 3 = 78 81 - -3 = 84
The mean.The mean.The mean.The mean.
78 + 84 = 162