
Lesson 1: Illustrate Random Variable (Discrete & Continuous)
Presentation
•
Mathematics
•
7th - 11th Grade
•
Easy
Jessa Velmonte
Used 14+ times
FREE Resource
10 Slides • 15 Questions
1
Lesson 1: Illustrate Random Variable (Discrete & Continuous)
Day 1
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From the past activities, you have
1. Watched and participated the random experiment and learned what is random variable
2. learned the difference between Discrete and Continuous Variable
3. learned to denote random variable X
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Now, do this short practice exercises
4
Multiple Choice
This is a trial, observation or a process whose outcome cannot be predicted. Additionally, we can repeat the same process numerous times under the same conditions.
Social Experiment
Random Variable
Random Experiment
Sample
5
Multiple Choice
The following is a random experiment except _____
Tossing a die
doing a survey on Filipino investors
Drawing a card from a deck of cards
Lotto Draw
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Multiple Choice
A variable whose value is obtained by counting data is called__________
Discrete
Random Variable
Continuous
Sample
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Multiple Choice
A variable whose value is obtained by measuring is called_____________
Discrete
Random Variable
Continuous
Sample
8
Multiple Choice
A variable that can be discrete or continuous is ______________________
Discrete
Random Variable
Continuous
Sample
9
Multiple Choice
Time it takes to get to school is an example of ________________________
Discrete
Random Variable
Continuous
Sample
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Multiple Choice
Number of heads in flipping coins is an example of ___________________
Discrete
Random Variable
Continuous
Sample
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Now, read some summary concepts about random variable.
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What is a random variable?
A Random Variable is a capacity that connects a real number with every component in the sample space. It is a variable whose qualities are controlled by chance. In this manner, a Random Variable is a numerical amount that is derived from the results of an arbitrary trial or experiment.
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Open Ended
YOUR TURN:
Give a random variable with the experiment:
Tossing two fair coins simultaneously.
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What is a Discrete random variable?
Discrete Random Variables are variables that can take on a finite number of distinct values. They are variables that can be counted.
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What is a Continuous random variable?
Continuous Random Variables are random variables that take an interminably uncountable number of potential values, regularly measurable amounts.
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YOUR TURN
DISCRETE VS.CONTINUOUS VARIABLE
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Multiple Select
The temperature of a solution in the laboratory
DISCRETE
CONTINUOUS
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Multiple Select
Collecting data about the heights of students in a public school
DISCRETE
CONTINUOUS
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Multiple Select
Number of promoted students at the end of school year
DISCRETE
CONTINUOUS
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Multiple Select
Recording the distance travelled by the bus
DISCRETE
CONTINUOUS
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Multiple Select
Surveying about the number of cases due to Covid - 19 pandemic in Quezon Province
DISCRETE
CONTINUOUS
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Multiple Choice
Which of the following variable is discrete random variable?
A. The amount of unleaded gasoline in a Suzuki car
B. The temperature of a cup of coffee served at a coffee shop.
C. The number of boys in a randomly selected two-child family
D. The average amount spent on electric bill every month of May by a randomly selected household in Quezon Province.
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Multiple Choice
You decided to conduct a survey of families with three children. You are interested in counting the number of girl in each family. Is this a random variable?
Maybe
Cannot be determined
Yes, it is a random variable.
No, it is not a random variable.
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You did it!
See you on Moday at
8:00 A.M. - 9:30 A.M.
Lesson 1: Illustrate Random Variable (Discrete & Continuous)
Day 1
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