Question

What kind of variable has values determined by chance? random variable discrete variable continuous variable Question...

  1. What kind of variable has values determined by chance?

    random variable

    discrete variable

    continuous variable

Question 5

  1. A binomial distribution is a probability distribution for a:

    discrete random variable

    continuous random variable

Question 6

  1. A normal distribution is a probability distribution for a:

    continuous random variable

    discrete random variable

Question 7

  1. Which is not a property of the binomial distribution?

    only two outcomes

    fixed number of trials

    constant probability of success

    dependent outcomes
Math   Statistics-And-Probability   
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Homework Answers

Answer #1

Question 4

Random variable has values determined by chance. Option 1 is correct.

Because continuous and discrete variable has values determined by chance. In continuous case it is calculated within certain interval and in discrete case it is calculated by counting.

Question 5

A binomial distribution is a probability distribution for a discrete random variable. Option 1 is correct.

Because it takes some mass points with some probability.

Question 6

A normal distribution is a probability distribution for a continuous random variable. Option 1 is correct.

Because it can take any value between any two possible values in it's domain.

Question 7

Dependent outcomes is not a property of the binomial distribution. Option 4 is correct.

Because binomial distribution has independent outcomes.

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