Wednesday

January 28, 2015

January 28, 2015

Posted by **Bill** on Tuesday, March 26, 2013 at 8:02pm.

P(x)- .25, .05, .55, .15

- Statistics -
**PsyDAG**, Wednesday, March 27, 2013 at 2:08pmFind the mean first = sum of scores/number of scores

Subtract each of the scores from the mean and square each difference. Find the sum of these squares. Divide that by the number of scores to get variance.

Standard deviation = square root of variance

I'll let you do the calculations.

**Answer this Question**

**Related Questions**

STATISTICS - Consider a binomial random variable where the number of trials is ...

Statistics - 1) A Motor Company has purchased steel parts from a supplier for ...

Statistics - Given that x is a normally distributed random variable with a mean ...

Math - Random variables X and Y are both normally distributed with mean 100 and ...

Statistics - I am so lost on this statistics question would someone help me ...

math - Suppose x is a random variable with mean and standard deviation. If a ...

Stats - The random variable U has mean 10 and standard deviation 5.The random ...

statistics - population has mean 53 and standard deviation 12. Calculate the ...

statistics - A specific study found that the average number of doctor visits per...

Statistics - According to a study by the Centers for Disease Control, the ...