Random Variable

Lesson 1: Illustrate Random Variable

Jessa Jean F. Velmonte

Why do you think this is a random experiment?

Anyone?

Why is a lotto draw not a random experiment?

Multiple Choice

This is a the set of all possible outcomes of a random experiment. What is this?

• Random variable

• Sample space

Multiple Choice

What is a random variable?

• It is a value depends on the outcome of a random process

• It is an experiment done randomly like tossing a coin.

Identify whether the following variables are "countable" or "measurable".

Multiple Choice

Height of the female classmate

(in centimeters)

• countable

• measurable

Multiple Choice

Number of times that the spinner stops at number 3

• countable

• measurable

Multiple Choice

sum of the numbers on the uppermost faces when rolling 2 dice

• countable

• measurable

So, how do we classify random variables?

What is continuous random variable?

Anyone?

What is discrete random variable?

Anyone?

Multiple Choice

Distance travelled between tricycles

• Continuous Random Variable

• Discrete Random Variable

Multiple Choice

Number of red marbles in the basket

• Continuous Random Variable

• Discrete Random Variable

Multiple Choice

Weight of student

• Continuous Random Variable

• Discrete Random Variable

Multiple Choice

The number of students present in a STEM class

• Continuous Random Variable

• Discrete Random Variable

Multiple Choice

Jerwin ran 500 meters in two minutes

• Continuous Random Variable

• Discrete Random Variable

LET'S SUMMARIZE!

DISCRETE - Countable values of random variable

CONTINOUS - Measurable values of random variable

GROUP WORK (10 minutes)

• Create your own group with 4 members

• Go to our google site (Synchronous > Lesson 1 ) and click on your group material

• You can create your messenger VC to discuss your activity. Edit the google doc.

Checking...|| 18 points

Echange your paper.

Group 1 >> group 5

Group 5 >> group 4

Group 4 >> group 3

Group 3 >> group 2

Group 2 >> group 1

ASSESSMENT

Please go to our google site and answer the Assessment form.