Monday

March 30, 2015

March 30, 2015

Posted by **arron** on Saturday, June 2, 2012 at 11:52am.

a) 107 - 135

b)93 - 149

c) 79 - 163

- algebra -
**PsyDAG**, Sunday, June 3, 2012 at 11:13amZ = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions related to the Z scores. Use the proportions between Z and mean and multiply by 400.

**Answer this Question**

**Related Questions**

algebra - In a set of 400 values, the mean is 121 and the standard deviation is ...

math - In a set of 400 values, the mean is 121 and the standard deviation is 14...

math 3b - In a set of 400 values, the mean is 121 and the standard deviation is...

Math-confused...plz help - I. Use Chebyshev’s theorem to find what percent of ...

Math-Statistics - I. Use Chebyshev’s theorem to find what percent of the values ...

Stats - I. Use Chebyshev’s theorem to find what percent of the values will fall ...

Math - I. Use Chebyshev’s theorem to find what percent of the values will fall ...

statistics - I.use the chebyshev's theorem to find out what percentage of the ...

Math - Assume a data set is normally distributed with mean 11 and standard ...

statistics - e Chebyshev’s theorem to find what percent of the values will fall ...