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Bogdan [553]
1 year ago
12

Answer!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Ghella [55]1 year ago
8 0

Answer:

Step-by-step explanation:

if a person is not a hockey player, they are not a prof athlete

if a person is a hockey player, they are a prof athlete

if a person is not a prof athlete, then they r not a hockey player

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Step-by-step explanation:

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Orlov [11]

Answer:

Therefore the variance on the data set is 8.3

Step-by-step explanation:

In order to find the variance of the set of data we first need to calculate the mean of the set, which is given by:

mean = sum of each element / number of elements

mean = (5 + 8 + 2 + 9 + 4)/5 = 5.6

We can now find the variance by applying the following formula:

s^{2} = \frac{\sum_{(i=1)}^n(x_i - mean)^2}{n -1}

So applying the data from the problem we have:

s² = [(5 - 5.6)² + (8 - 5.6)² + (2 - 5.6)² + (9 - 5.6)² + (4 - 5.6)²]/(5 - 1)

s² = [(-0.6)² + (2.4)² + (-3.6)² + (3.4)² + (-1.6)²]/4

s² = [0.36 + 5.76 + 12.96 + 11.56 + 2.56]/4 = 8.3

Therefore the variance on the data set is 8.3

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Ten Thousand.  

Hope this helped. :) We worked together. :D
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