please help me with these. thank you.

1.What is probability?*

The likelihood that something will happen

A theory

A problem

An experiment

2.Which of the following statement is NOT TRUE about probability.*

Relative frequency approach was also known as A Posteriori probability.

A priori probability means we can state the answer in advance without performing the experiment.

Subjective Probability was based on the beliefs of the person making the probability assessment.

The probability of an event only takes its values from [ -1, 1 ].

3.Suppose that on a typical day, 18 cats are presented to a veterinary clinic, and six are seen to have fleas. If we let random variable X to be the number of cats with fleas, then X follows a __________ distribution.*

Poisson

Uniform

Normal

Binomial

4.Statistics department purchased 24 calculators from a dealer in order to have a supply on hand for students who forgot to bring their own. The department was not aware that five of the calculators are defective and gave an incorrect answer. If we let random variable X to be the number of defective calculators to be selected by students,*

X = {1, 2, 3, 4, 5}

X = {1, 2, 3, ..., 24}

X = {0, 1, 2, 3, ..., 24}

X = {0, 1, 2, 3, 4, 5}

5.Which of the following can looked upon as a proper probability distribution of a random variable X that can take only the values 0, 1, 2, 3.

\f1.96-(0.99) (1-0.99) n= 0.0521.645 (0.37) (1-0.37) n 0.0521.645 (0.37)(1-0.37) n 0.102