Homework Help: stats

Posted by UPD on Thursday, April 15, 2010 at 8:10pm.

Info given:With a random sample of 9 men. let X denote the number of men with head circumference larger than 57.8cm. the normal mean=56cm and standard dev=1.8cm.

So this is a binomal dis-

they ask;
For X, calculate pr(X=2)?

second part,
Let X denote the number of men with HC larger than 57.8cm in a random sample of size 100. Use normal Aprrox to calculate Pr(X<20)?

No one has answered this question yet.

Answer this Question

Related Questions

statistics - Info given:With a random sample of 9 men. let X denote the number ...
Stats - nformation given:the distribution of male head circumference (HC) is ...
statistics - Information given:the distribution of male head circumference (HC) ...
statistics help please - For a random sample of 10 men, the mean head ...
stats - blood cholesterol level of all men age 20-24 follows N(188,41) where the...
stats - the head circumferences of adult males have a bell-shaped distribution ...
Statistics - A recent study was designed to compare smoking habits of young ...
Stats - The heights of men in the USA are normally distributed with a mean of 68...
STATISTICS - Length of Hospital Stays: The average length of “short” ...
math - A survey by Men’s Health magazine stated that 40% of men said they ...

For Further Reading

First Name:
School Subject:
Answer: