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No number appears more than all others, but 85, 86 and 96 all appear twice, and so they can all be said to be the mode.

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A bag contains 64 balls of 8 different colors.There are eight balls of each color.What is the least number you would have to pick without looking to be sure of selecting 3 red balls?

59


What is 64 cube?

The cubed root of 64 is 4. 4*4*4=64.


What is the mean mode median of 64 64 64 65 65 65 65 67 67 68 68 70 70 72 73 76 79 80?

64 64 64 65 65 65 65 67 67 68 68 70 70 72 73 76 79 80. NB Place the numbers in RANK order. In this case it is already done #1 MODE ; is the term that occurs most frequently. In this case it is '65' , as there are four lots of '65' #2 MEDIAN ; is the term that occurs at the ABSOLUTE middle of the ranked order. Since there are eighteen terms, there is no absolute middle term. So we take the two middle terms that have the same number of terms to their side, that is terms nine & ten. They are 67 & 68. We then add these two together and halve the result. Hence (67 + 68) / 2 = 67.5. This is the median term. #3 MEAN ; is the sum of all the terms, which is the divided by the number of terms. Hence (64+64+64+65+65+65+65+67+67+68+68+70+70+72+73+76+79+80)/18 = 69' NB Another way of calculating the mean is ((3x64)+(4x65)+(2x67)+(2x68)+(2x70)+72+73+76+79+80)/18 = 69 NNB The word 'average' is casually used in the non-mathematical world, but the correct term is MEAN.


What is the standard deviation for the following numbers 100 76 68 80 56 64 72 52 84 40 60 72 56 64 36 52 76 44 60 80 56 48 68 76 84?

75.5 approx.75.5 approx.75.5 approx.75.5 approx.


What is the standard deviation of 68 73 64?

The standard deviation of 68 73 64 is: 4.5093