Consider the following statements: 1. A continuous variable can take all values in an interval. 2. A random variable which takes a finite number of values is necessarily discrete. 3. Construction of a frequency distribution is based on data which are discrete. Which of the above statements are correct?

• A

  1 and 2 only
• Correct answer
  B

  2 and 3 only
• C

  1 and 3 only
• D

  1,2 and 3

Hence, the correct answer is option: 'B'.