SOLUTION: Please help me solve this : Find the mean for the following probability distribution, where x = number of hurricanes that hit a certain coast area in any given year and P(x) = the

Question 538891: Please help me solve this :
Find the mean for the following probability distribution, where x = number of hurricanes that hit a certain coast area in any given year and P(x) = the corresponding probabilities.
x P(x)
0 .15
1 .4
2 .3
3 .15
I think I would go X = 4 and P(x)=.37 q= 1-.37 =.63
and .63 would be my mean but im not sure if i have to find mean that is
0+.15 /2 = .075
1+.4=.7 and so on
Thanks for you help
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Mean = sum of the x*P(x) terms

Mean = 0*0.15 + 1*0.4 + 2*0.3 + 3*0.15

Mean = 0 + 0.4 + 0.6 + 0.45

Mean = 1.45

So the mean is 1.45
RELATED QUESTIONS
Suppose the National Hurricane Center forecasts that hurricanes will hit the strike area... (answered by stanbon)

Please help me solve this: find the probability distribution for the random variable... (answered by stanbon)

Find the mean and standard deviation of the following probability distribution:... (answered by Positive_EV)

can u please help me in this find the mean and variance if they exist , of each of the... (answered by stanbon)

3) Fidelity records the number of X-Trails sold each day. This data is used in... (answered by jim_thompson5910)

please help me solve this probability problem. 1. Given a normal distribution of... (answered by stanbon)

do i take .80/0, .80/1, .80/2, .80/3, .80/4 to find my probabilty???? If i am in the... (answered by ewatrrr)

The time that it takes for the next train to come follows a Uniform distribution with... (answered by greenestamps,math_tutor2020)

Could someone explain this to me because the book was no help. The random variable... (answered by Fombitz)