Math 246 Project 4 Sample KEY

# Math 246 Project 4 Sample KEY - KEY Project Two Chapter 6...

This preview shows pages 1–2. Sign up to view the full content.

KEY Project Two ____ Chapter 6 Use complete sentences when appropriate; u se complete mathematical sentences when appropriate. Failure to do so may result in a lower score. S how all your work. Indicate clearly the methods you use, because you will be graded on the correctness of your methods as well as on the accuracy of your results and explanation. If you present parallel solutions , I will grade the lesser of the two. 1. Given the following probability distribution: X P(X) 3 .4 4 5 .1 6 .2 (a) What is P(x=4)? P(X = 4) = 1 –(.4+.1+.2) =.3 (b) Find the mean and standard deviation of this distribution. Use IT : mean = 4.1 and standard deviation is 1.136 ************************************************************************************* 2. According to a currently report 67% of murders are committed with a firearm. Suppose that 30 murders were randomly selected and the number of murders committed with a firearm is recorded. (assume a binomial distribution) (a) Compute and interpret the probability that exactly 25 murdered were committed using

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 2

Math 246 Project 4 Sample KEY - KEY Project Two Chapter 6...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online