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a new ‘partial correlation’ 1.Describe a normal bell-shaped curve showing a mean of 100, a standard...

a new ‘partial correlation’

1.Describe a normal bell-shaped curve showing a mean of 100, a standard deviation of 10 and the percentages of scores that would fall at each standard deviation.

What % of values will fall between 90-110?
What % of values will fall between 80-120?
What % of values will fall between 70-130?

2. In a distribution with a mean of 200 and a standard deviation of 20 what is the  probability that someone will score at or above 220?

Math   Statistics-And-Probability   
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