# Probability Calculations

Not what you're looking for?

Please help with the following problems. Provide step by step calculations.

A recently published study shows that a country's true unemployment rate to be 12%. Assume that 300 members of the labour force are selected at random.

A) What is the expected number of people unemployed?

B) What is the probability that exactly 29 people are unemployed?

C) What is the probability that at least 29 people are unemployed?

D) What is the probability that not more than 29 people are unemployed?

##### Purchase this Solution

##### Solution Summary

This posting helps with problems involving probabilities and unemployment. Step by step calculations are provided.

##### Solution Preview

A) What is the expected number of people unemployed?

p= 12% = percentage of people unemployed

q=1-p= 88% = percentage of people employed

n= 300

Expected number of people unemployed=Mean= M =np= 36 =(300*0.12)

Answer= 36

B) What is the probability that exactly 29 people are unemployed?

We can use the Poisson distribution to determine the probability

...

##### Purchase this Solution

##### Free BrainMass Quizzes

##### 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.

##### Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

##### Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

##### 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.