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Random Variables

Authored by E Uy

Mathematics

9th - 10th Grade

CCSS covered

Used 43+ times

Random Variables
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10 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

State why the example does or does not describe a random variable.


Label five slips of paper as A, B, C, D, and E. S is the random selection of a slip of paper.

S is a random variable. A random variable is denoted with a capital letter.

S is not a random variable, the outcome of the experiment is not numerical.

S is a random variable. It has five possible outcomes.

S is not a random variable. It is not determined by chance.

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

State why the example does or does not describe a random variable.


The letters "A", "B", "C", "D", "E", and "F" are written on six slips of paper, and the slips are placed into a hat. Assign A = 1, B = 2, C = 3, D = 4, E = 5 , and F = 6. S is the random selection of a slip of paper.

S is a random variable. It has a single value for each outcome in an experiment.

S is a random variable. A random variable is denoted with a capital letter.

S is a random variable. It is not random.

S is not a random variable. It is not determined by chance.

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

State whether the variable is discrete or continuous.


O represents the age of a single randomly chosen student from your classroom

discrete random variable

continuous random variable

neither discrete random variable nor continuous random variable

Tags

CCSS.HSS.ID.A.4

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

A point is randomly selected from the interior of a square. Let x denote the distance from the lower left-hand corner A of the square to the selected point. Are the possible values of x a discrete or continuous variable?

discrete random variable

continuous random variable

neither discrete random variable nor continuous random variable

Tags

CCSS.6.SP.A.3

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Assume the “student” in the situation is chosen at random, and state whether the variable is discrete or continuous.


The body temperature of the student.

Discrete random variable

Continuous random variable

Neither discrete nor continuous

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Assume the “student” in the situation is chosen at random, and state whether the variable is discrete or continuous.


The student’s favorite teacher.

Discrete random variable

Continuous random variable

Neither discrete nor continuous

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Assume the “student” in the situation is chosen at random, and state whether the variable is discrete or continuous.


The number of books the student has in his or her bag.

Discrete random variable

Continuous random variable

Neither discrete nor continuous

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