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

And replacig we got:

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:

And replacig we got:

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it