Problem 1
Use four decimal places in your answers for this problem.
Eighteen (18) people in a department of 162 are fully trained in CPR and AED. A person shows signs of a heart attack. Five (5) people respond. What is the probability that NO (0) person who responded is trained to treat the victim? (Show all of your calculations)

Problem 2
Use three decimal places in your answers for this problem.
An airline company claims their arrivals are on time within an average of +/- 5 minutes and a standard deviation of 2.82 minutes; Normally Distributed. You sample 50 arrivals and find an average of 6.3 minutes late. Can you be at least 90% sure that the airline company's claim is correct? (Show all of your calculations)

Solution Preview

Problem 1
Here we know that P(Trained) = 18/162=0.1111
So p=0.1111 q=1-0.1111=0.8889
This is binomial distribution we need to calculate P(r=0, n=5) = 5C0*p^0*q^5
=1*0.1111^0*0.8889^5
=0.554963641 or 0.5550

Problem 2
Use three decimal places in your answers for this problem. ...

Solution Summary

This Solution contains calculations to aid you in understanding the Solution to these questions.

... alternatives and their probabilities of occurrence are given below. Alternative 1 Alternative 2 Alternative 3 Outcomes Probability Outcomes Probability...

Worst possible outcome and the probability of its occurrence. ... Estimates of the likely savings and their probability of occurrence are detailed below: ...

Finding the Probability of Occurrence. A poll was taken to determine the birthplace of a class of college students. Below is a chart of the results. ...

... Value Given Probability of Occurrence of Outcomes. A project has the following projected outcomes in dollars: $250, $350, and $500. The probabilities of their ...

... The expert examines Fisher's exact test for occurrence of sudden infant death syndrome ... take the values 0,1,2, , n ( n ≤ M). The probability distribution of ...