Question

The probability distribution of a random
variable x is given below:
x:12 4 5 6
p: 0.15 0.25 0.20 0.30 0.10
What is the standard deviation of x?
(a) 1.49
(c)1.69
(b) 1.56
(d) 1.72​

Answer 1

Answer:

c is the answer of this question