Question

Find the mean of following distribution
4.
p(x)
0.25
0.15

Answer 1

Answer:

$E(x) =\sum_{i=1}^n X_i P(X_i)$

And replacig we got:

$E(x) = 4*0.25 +5*0.6 +6*0.15= 4.9$

Step-by-step explanation:

For this case we have the following distribution function

x       4        5     6

p(x) 0.25  0.6  0.15

And we want to find the mean of the distributuon and we can use the following formula:

$E(x) =\sum_{i=1}^n X_i P(X_i)$

And replacig we got:

$E(x) = 4*0.25 +5*0.6 +6*0.15= 4.9$