Purchase Solution

Figure out multiple probability questions

Not what you're looking for?

Ask Custom Question

1) For the following questions, would the following be considered "significant" if its probability is less than or equal to 0.05?
a.Is it "significant" to get a 12 when a pair of dice is rolled?

b. Assume that a study of 500 randomly selected school bus routes showed that 480 arrived on time. Is it "significant" for a school bus to arrive late?

2) If you flip a coin three times, the possible outcomes are HHH, HHT, HTH, HTT, THH, THT, TTH, and TTT. What is the probability of getting at least one head?

3) A sample space consists of 64 separate events that are equally likely. What is the probability of each?

4) A bag contains 4 red marbles, 3 blue marbles, and 7 green marbles. If a marble is randomly selected from the bag, what is the probability that it is blue?

5) The data set represents the income levels of the members of a country club. Estimate the probability that a randomly selected member earns at least $98,000.

112,000 126,000 90,000 133,000 94,000
112,000 98,000 82,000 147,000 182,000
86,000 105,000 140,000 94,000 126,000
119,000 98,000 154,000 78,000 119,000

6) Suppose you have an extremely unfair coin: The probability of a head is ¼ and the probability of a tail is ¾. If you toss the coin 32 times, how many heads do you expect to see?

Purchase this Solution
Solution Summary

The solution provides detailed explanation how to figure out multiple probability questions.

Purchase this Solution
Free BrainMass Quizzes
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.

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.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

View More Free Quizzes
Related BrainMass Solutions

  • Identify the distribution

    What type of probability distribution can be used to figure his chance of getting at least 20 questions right? A. Binomial distribution B. Poisson distribution C. Normal distribution D. Hypergeometric distribution.

  • Can you alway compute the probability of an event?

    To figure this out, you need to review the rules of probability. The probability of an event is the number of times it is expected to occur / total number of possible events.

  • probability of guessing four correct out 20 multiple choices

    189595 probability of guessing four correct out 20 multiple choices If a student randomly guesses at 20 multiple-choice questions, what is the probability that the student gets exactly four correct? Each question has four possible choices.

  • Find the probabilities

    Remember that in probability theory, AND means that you multiply probabilities. So you can figure out that: P(6 girls) = 0.5*0.5*0.5*0.5*0.5*0.5. Now simply solve this to find the probability. 2.

  • probability of guessing 8 out 10 questions correct

    For this binomial distribution, n = 10, p = 0.25 The solution calculates the probability of answering 8 out of 10 multiple choice questions correctly by guessing.

  • MCQs:Statistics

    The solution provides answers to multiple choice questions on probability and confidence interval. Relevant workings are also provided.

  • Conditional Probability using a Chart

    To figure out the probability of none of them having the disease, we multiple three independent probability: P=(1-4.9%)*(1-2.3%)*(1-7.8%)=0.856655 [note: for each individual, the probability of not having disease is 1-P, P is the probability of having

  • 12 Multiple Choice Word Problems involving the Binomial, Normal, Poisson and Exponential Probability Distributions

    576300 12 Multiple Choice Word Problems involving the Binomial, Normal, Poisson and Exponential Probability Distributions Need some assistance with the following questions.

  • Chevalier de Mere's puzzle and other questions of probability

    What happens to the above probability as n goes to infinity? --- Please find the attached solution. Thanks This solution includes many multiple choice questions of advanced probability puzzles and questions.

View More Related Solutions