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

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.