SOLUTION: A normal distribution consist of 100 scores with a mean of 65 and a standard deviation of 5. How many scores are above 70 and how many scores are below 55?
Please break it down
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-> SOLUTION: A normal distribution consist of 100 scores with a mean of 65 and a standard deviation of 5. How many scores are above 70 and how many scores are below 55?
Please break it down
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Question 375884: A normal distribution consist of 100 scores with a mean of 65 and a standard deviation of 5. How many scores are above 70 and how many scores are below 55?
Please break it down step by step, because I am not understanding. I think I got the 2nd half right, but I cannot come up with the 1st part with scores being above 70.
Thanks
Kerry
You can put this solution on YOUR website! A normal distribution consist of 100 scores with a mean of 65 and a standard deviation of 5. How many scores are above 70 and how many scores are below 55?
Please break it down step by step, because I am not understanding. I think I got the 2nd half right, but I cannot come up with the 1st part with scores being above 70.
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Find the z-score of 70.
Find the probaility of z being greater than that z-score.
Cheers,
Stan H.
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