Answer:
Next 3 of the sequence are 4, 7, 10
You are adding by 3.
-2 - -5= 3
-2 + 3=1
1+3=4
4+3=7
7+3=10
Variance of a continuous random variable X is defined as
Standard deviation is defined as

Hence standard deviation is the positive square root of variance.
Answer: the decimal should still be there but you don’t want to have a zero so 3.42 would be correcr
Step-by-step explanation: