Saturday
October 25, 2014

Homework Help: statistics

Posted by Jane on Saturday, May 10, 2008 at 2:16am.

Let A and B be constants such that A < B. Let z be a standard normal
random variable. For what values of A does P(A<z<B)approximately
equal P(z<B)?
Pick ALL that apply.

a. A = -9

b. A = -26

c. A = 0

d. A = 9

e. None of these are correct.

This is how I'm reasoning this question:
B is not specified, but B > A.
a) A=-9, let B=-8.9

So, that's why I think the answer would be A and B. But I have a feeling I
am wrong.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Statistics - 1. In thinking about doing statistical analysis, the sample mean ...
Statistics - Find an example of application of Normal Distribution (or ...
Statistics - A person's level of blood glucose and diabetes are closely related...
statistics - Let x be a random variable that represents the length of time it ...
statistics - What is wrong with the following statements? a) For a large n, the ...
random variables - For the standard normal random variable Z, compute the ...
statistics - If the random variable z is the standard normal score and a > 0...
math 115 - Let x be a continuous random variable that follows a normal ...
Statistics - For the overall population, the IQ scores follow the normal ...
Statistics - Suppose that the probability distribution of a random variable x ...

Search
Members