Variance of the following continuous frequency distribution is

Class Interval	$0$–$4$	$4$–$8$	$8$–$12$	$12$–$16$
Frequency	$1$	$2$	$2$	$1$

• A

  $16$
• Correct answer
  B

  $\frac{44}{3}$
• C

  $23$
• D

  $\frac{22}{3}$

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