Find the value of p from the table above. ii. Calculate the probability that at X is at least 5.  iii. Calculate the mean of the distribution

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter12: Probability
Section12.4: Discrete Random Variables; Applications To Decision Making
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The table below shows the probability distribution of the discrete random variable X.


           X                 2                 3            4               5                6                    7
           P(X=x)        p                2p           p              2p              3p                  p


i. Find the value of p from the table above.

ii. Calculate the probability that at X is at least 5. 
iii. Calculate the mean of the distribution. 

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