Tag: business mathematics and statistics

Quizzes (14) Questions (285)

Questions Related to business mathematics and statistics

Multiple choice business mathematics and statistics random variable and mathematical expectation discrete and continuous data random variable random variable and its types

The weight of students in a class is an example of ________ variable.

  1. discrete

  2. continuous

  3. dependent

  4. nominal
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A continuous variable is a variable whose value is obtained by measuring.
So, The weight of students in a class is an example of continuous variable.

Multiple choice business mathematics and statistics random variable and mathematical expectation discrete and continuous data random variable random variable and its types

The height of animals in park is not a _______ variable.

  1. discrete

  2. dependent

  3. nominal

  4. continuous
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A discrete variable is a variable whose value is obtained by counting.
So, height of animals in a park is not a discrete variable. 
Because the height will not be same for all animal, it may varying in height. 
example: elephant - $4$ m, tiger - $2$ m, giraffe - $10$ m

Multiple choice business mathematics and statistics random variable and mathematical expectation discrete and continuous data random variable random variable and its types

A _______ variable is a variable whose value is obtained by measuring.

  1. dependent

  2. continuous

  3. discrete

  4. nominal
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A continuous variable is a variable whose value is obtained by measuring.
Example: The weight of a cat is a continuous variable as it can take any value - for example, $2$ kg, $4$ kg, $3.2$ kg etc.

Multiple choice business mathematics and statistics random variable and mathematical expectation discrete and continuous data random variable random variable and its types

What type of variable is given below?
distance travelled from classes.

  1. discrete

  2. dependent

  3. nominal

  4. continuous
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A continuous variable is a variable whose value is obtained by measuring.
So, distance travelled from classes is an example of continuous variable.

Multiple choice business mathematics and statistics random variable and mathematical expectation discrete and continuous data random variable random variable and its types

The height of animals in park is a _______ variable.

  1. discrete

  2. continuous

  3. nominal

  4. dependent
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A continuous variable is a variable whose value is obtained by measuring.
The height of animals in park is a continuous variable.
Because the animals have different heights.

Multiple choice business mathematics and statistics random variable and mathematical expectation discrete and continuous data random variable random variable and its types

Which one of the following is a continuous variable statement?

  1. how old are you?

  2. number of students in a class

  3. weight of a new born

  4. count the number of chocolates in a jar
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Continuous variable has the infinite set of the data.
So, weight of a newborn is an example of continuous variable.
Because the weight may vary from $2.3$ kg, $3.1$ kg, $4$ kg etc.

Multiple choice business mathematics and statistics random variable and mathematical expectation discrete and continuous data random variable random variable and its types

Time taken to complete a task. The answer is an example of which type of variable?

  1. discrete

  2. dependent

  3. continuous

  4. nominal
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Continuous variable has the infinite set of the data.
So, time taken to complete a task is an example of continuous variable.
For example time taken to complete a task will be $1$ minute $10$ seconds, $1$ minute $20$ seconds, and so on.

Multiple choice business mathematics and statistics random variable and mathematical expectation discrete and continuous data random variable random variable and its types

Continuous variable has the ______ set of the data.

  1. finite

  2. infinite

  3. composite

  4. definite
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Continuous variable has the infinite set of the data.
Example: height of students in a class
Each and every students in a class has different heights, like $56.5, 45.9, 67.8$ etc..

Multiple choice business mathematics and statistics random variable and mathematical expectation discrete and continuous data random variable random variable and its types

Example of continuous variable is ________.

  1. number of bubbles in a fish tank

  2. time taken to complete a task

  3. are you a girl or boy?

  4. toss a coin to get head
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A continuous variable is a variable whose value is obtained by measuring.
So, time taken to complete a task is a continuous variable as it can take any value - for example, $2$ hours $2$ mins, $2$ hours $20$ seconds etc..