Homework Help: Calculus

Posted by Cesar on Thursday, October 27, 2011 at 9:59pm.

Suppose that p(x) is the density function for heights of American men, in inches, and suppose that p(69)=0.22. Think carefully about what the meaning of this mathematical statement is.

(a) Approximately what percent of American men are between 68.7 and 69.3 inches tall?

b) Suppose P(h) is the cumulative distribution function of p. If P(69)=05, estimate each of:
P(68.7)=
P(68.4)=

For a I multiplyed .22 by (69.3-68.7)= 13.2%

I don't know what to do for part b though...

Calculus - Cesar, Thursday, October 27, 2011 at 10:18pm
On b, it was If P(69)=0.5
Calculus - e, Wednesday, March 27, 2013 at 11:49am
d

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