SOLUTION: b) Given the probability distribution below: X 4 5 9 10 P(X) 1\2 1\6 1/6

Question 1191423: b) Given the probability distribution below:
X 4 5 9 10
P(X) 1\2 1\6 1/6 1/6
Sketch the probability function and find the mean and standard deviation.
Answer

Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
Without the sketch
mean=4*0.5+(5+9+10)(1/6)
=2+4
=6
Variance=(4-6)^2*0.5+{(5-6)^2+(9-6)^2+(10-6)^2}*(1/6)
=2+4.33
sd=sqrt(6.33)=2.52
RELATED QUESTIONS
Determine whether each of the distributions given below represents a probability... (answered by solver91311)

Determine whether each of the distributions given below represents a probability... (answered by solver91311,vleith,ewatrrr)

Determine whether each of the distributions given below represents a probability... (answered by AnlytcPhil)
Determine whether each of the distributions given below represents a probability... (answered by edjones)
Determine if each of the distributions given below represent a probability distribution.
 (answered by stanbon)
Determine whether each of the distributions given below represents a probability... (answered by Fombitz)
Determine whether each of the distributions given below represents a probability... (answered by stanbon)
Determine whether each of the distributions given below represents a probability... (answered by richard1234,stanbon)
Determine whether each of the distributions given below represents a probability... (answered by stanbon)