A researcher wants to know what people in Amsterdam think of football. He asks ten people to rate their attitude towards football on a scale from 0 (don't like football at all) to 10 (like football a lot). The ratings are as follows: 1, 10, 6, 9, 2, 5, 6, 6, 5, 10. What is the standard deviation?
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YOU HAVE TO FIND THE AVERAGE OR MEAN.
if you dont know thw formula it is:
all the numbers
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number of numbers
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