Which statement about the results of Tony’s experiment is accurate?

Question

Tony perform an experiment with a stand six-sided number cube and records his results in the table below.

Results	1	2	3	4	5	6
Occurrence	18	21	15	17	20	19

 

Answer 1

Total occurrences=110, which is the number of single throws of the cube.

The expected occurrence for each number is 110/6=18.3 approx (mean).

Variance=3.89 approx, standard deviation=2.0 approx.

The question doesn’t offer any statements to judge.