Friday

November 28, 2014

November 28, 2014

Posted by **mary- please check calculations.** on Saturday, October 23, 2010 at 5:32pm.

x 1 2 3

p(x) 0.2 0.6 0.2

*i think that the mean is 2 but am lost after that when it comes to the standard deviation. please show work and calculations. the more i work with numbers the more confused i get. thank you.

mary hornbeck

**Answer this Question**

**Related Questions**

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

Math (Statistic) - Considered the sampling distribution of a sample mean ...

Math- Statistics - A random sample of size 36 is to be selected from a ...

statistics - find the probability that the sample mean falls between 1.6 and 2.2...

Stastics - When we convert x-value to z- score and use Standard Normal ...

MATH - Which of the following normal distributions has the smallest spread? A. A...

math - Using the data in the table, calculate the mean, range, variance, and ...

math - Using the data in the table, calculate the mean, range, variance, and ...

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

statistics - what are the mean and standard deviation of a sampling distribution...