Random Variable

Lesson 1: Illustrate Random Variable

Jessa Jean F. Velmonte

Fill in the Blanks

After reading the materials, watching the videos and doing the practice exercises, how do you feel about the lesson? What do you remember most about the content?

[Please write a one-sentence answer in the box below.]

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.

Fill in the Blanks

Write the sample space when I toss a die.

Fill in the Blanks

Experiment: Tossing a pair of dice

Random variable X=the sum of the numbers on the uppermost faces

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.