Answer:
1.8
Step-by-step explanation:
Assume this experiment as a binomial distribution with the probability of success (rolling a two) being 1/6, the probability of failure (not rolling a two) being 5/6 and that the number of trials is n =23.
The standard deviation for a binomial distribution is defined by:
[tex]\sigma = \sqrt {n*p(1-p)}\\\sigma = \sqrt {23*\frac{1}{6} (1-\frac{1}{6})}\\\sigma = 1.8[/tex]
The standard deviation is 1.8.