Question 1

Classify the following random variable:

X: The amount of milk obtained from a cow.

Accepted Answer

Continuous

Answer

Discrete

Question 2

Classify the following random variable:

Z: Number of men among 50 newly hired doctors

Accepted Answer

Discrete

Answer

Continuous

Question 3

Classify the following random variable:

A: Amount of rainfall (in mm) in the different cities in Metro Manila

Accepted Answer

Continuous

Answer

Discrete

Question 4

It is a table showing all the possible values of a discrete random variable together with their corresponding probabilities. (Input your answers in ALL CAPITAL LETTERS)

Accepted Answer

DISCRETE PROBABILITY DISTRIBUTION

Question 5

The table below shows a Discrete Probability Distribution.

Accepted Answer

false

Answer

true

Question 6

The table below shows a Discrete Probability Distribution.

Accepted Answer

true

Answer

false

Question 7

If two coins are tossed, which is NOT a possible value of the random variable for the number of heads?

Accepted Answer

3

Answer

1

Answer

2

Answer

0

Question 8

Which of the following variables can assume only a finite number of values and can be determined by simply counting?

Accepted Answer

Discrete Random Variable

Answer

Continuous Random Variable

Answer

Discrete Probability Distribution

Answer

Continuous Probability Distribution

Question 9

Determine the mean of the following Random Variable.

Accepted Answer

1.83

Answer

1.37

Answer

1.75

Answer

1.50

Question 10

In a valid probability distribution, the probabilities must:

Accepted Answer

Be between 0 and 1 and the sum of the probabilities is 1.

Answer

Be between 0 and 1 and the sum of the probabilities is less than 1

Answer

Be between 0 and 1 and the sum of the probabilities is a positive number.

Answer

Be between 0 and 1 and the sum of the probabilities is greater than 1

Question 11

What is the sample space if two coins are tossed?

Accepted Answer

{HH, HT, TH, TT}

Answer

{H, T}

Answer

{HHH, TTT, HHT, HTH, HTT, THH, THT, TTH}

Answer

{HH, TT}

Question 12

What is the term used for the set of all possible outcomes in an experiment?

Accepted Answer

Sample Space

Answer

Statistics and Probability

Answer

Discrete Data

Answer

Random Variable

Question 13

Determine the mean of the following Random Variable.

Accepted Answer

4.13

Question 14

Determine the mean of the following Random Variable.

Accepted Answer

4.60

Question 15

Determine the Variance of the following Random Variable.

Accepted Answer

12.16

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