Question

The number of petals in a flower is an example of ----------- random variable.

• A. Qualitative
• B. Discrete
• C. Continuous
• D. Normal

Hint:

Discrete random variables have distinct, countable values, such as the number of petals in a flower, whereas continuous variables can take any value within a range.

Answer 1

The Correct Option is B

Step 1: Understanding random variables.
A discrete random variable is one that has a countable number of possible values. The number of petals in a flower is countable, making it a discrete random variable.
Step 2: Analyzing the options.

• (A) Qualitative: Incorrect. A qualitative variable refers to categories or qualities, not numerical counts.
• (B) Discrete: Correct. The number of petals in a flower is countable, making it a discrete random variable.
• (C) Continuous: Incorrect. Continuous variables can take any value within a given range, which does not apply to the count of petals.
• (D) Normal: Incorrect. Normal distribution is a type of continuous probability distribution, which does not apply here.

Step 3: Conclusion.
The number of petals in a flower is a discrete random variable because it is a countable value, making option (B) the correct answer. Final Answer:} Discrete.