Probability of Occurrence
Not what you're looking for?
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)
Purchase this Solution
Solution Summary
This Solution contains calculations to aid you in understanding the Solution to these questions.
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. ...
Purchase this Solution
Free BrainMass Quizzes
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.
Know Your Statistical Concepts
Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.
Measures of Central Tendency
This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.