In: Statistics and Probability
Rolling a fair six-sided die five times could result in the following sample of n = 5 observations:
What are the mean, variance, and standard deviation?
Here n = 5
p = probability of success = 1/6
Mean = n*p
= 5 * (1/6)
= 5/6
= 0.83
Mean = 0.83
Variance = n * p * (1-p)
= 5 * (1/6) * (1-1/6)
= 5 *(1/6) * (5/6)
= 0.69 (Round to 2 decimal)
Variance = 0.69
Standard deviation =
=
= 0.83 (Round to 2 decimal)
Standard deviation = 0.83