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For 98 78 86 88 84 81 93 92 89 and 81: σ=6.2361

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12y ago

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What is th standard deviation of 72 68 64 90 80 84 78 75 76 77?

For 72 68 64 90 80 84 78 75 76 77: σ=7.4863


4.43.63.84.54.84.1 mean and standard deviation?

For the numbers 4, 43, 63, 84, 54, 84 and 1, the standard deviation is 34.20943896 and the mean is 47.57142857.


What is the value of 40078228416811927?

400 - 78 - 22 --84 - 16 - 81 - 19 - 27 = 400 - 78 - 22 + 84 - 16 - 81 - 19 - 27 = 241


What is the median 84 83 78 75 90 77 75 81 85 82 78 83 72 80 81 79 75 76 83 81 78 78?

83


What is the mode of 84 82 81 78 and 78?

78 appears more than any other number, so it is the mode.


What is the variance in this problem 73 72 67 74 78 84 79 71 76 76 79 81 75 80 78 76 78?

The variance of 73 72 67 74 78 84 79 71 76 76 79 81 75 80 78 76 78 = 16.8456


What are the mean median mode range and standard deviation of the dataset 76 82 73 93 91 81 79 86 84?

To calculate the mean, add all the numbers (76 + 82 + 73 + 93 + 91 + 81 + 79 + 86 + 84 = 765) and divide by the total count (9), resulting in a mean of 85. The median, when the numbers are arranged in order (73, 76, 79, 81, 82, 84, 86, 91, 93), is 82. The mode does not exist as all numbers appear only once. The range is 93 - 73 = 20, and the standard deviation is approximately 6.07.


How much is 84 percentile equals mean plus 1 standard deviation or mean plus 1.4 standard deviation. Can you give me reference also please?

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.


What floor was the south tower hit?

Floors 78 to 84....floor 81 was the impact zone.


Does 84 percent of people do higher than 1 standard deviation below the mean?

yes


Nine squared is how much more than the square root of nine?

81 - 3 = 78 81 - -3 = 84


What is the reference point of a standard deviation?

The mean.The mean.The mean.The mean.