Given that 220 = -2 and 260 = -1, which of the following do you know?
The variance is 10.
The standard deviation is 30.
The mean is 80.
The median is 40
The data point x = 20 is 2 standard deviations from the mean
The data point x = 50 is 1 standard deviation from the mean
The data point x = 45 has a z value of 1.5

22.83 repeating

step-by-step explanation:

137 ÷ 6 is 22.8333333 therefore we understand that 3 is repeating.

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in if you ask questions, the points are taken from your total and given to the one who answered it..

so if i have 30 points and i ask a question for 5 points, then when someone asks a question i will lose 5 points and the answerer earns 5

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