Homework Help: Statistics

Posted by Heather on Thursday, November 8, 2012 at 4:54pm.

male heights are normaly distributed with a mean of 70 and a standard deviation of 2.8 inches. for two randomly selected guys, what's the probability that both of them are 67 inches or shorter? show calculations.

Can someone please help me quickly with this question?

Statistics - PsyDAG, Friday, November 9, 2012 at 10:14pm
Z = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion related to the Z score.

The probability of both/all events occurring is found by multiplying the probabilities of the individual events.

Answer this Question

Related Questions

statistics - Assume that the population of heights of male college students is ...
Statistics - The heights of male students in a given university are normally ...
statistics - The distribution of the heights of men in the U.S. is normally ...
Statistics - The heights of the students in a statistics class are approximately...
statistics - The heights of 10000 individuals are approximately normally ...
statistics - The heights of 10000 individuals are approximately normally ...
MATH - Assume that the population of heights of male college students is ...
Statistics - The distribution of heights of American women aged 18 to 24 is ...
stats (please help) - Assume that the population of heights of male college ...
statistics - Help me! Population of heights of college students is approximately...

For Further Reading

First Name:
School Subject:
Answer: