For any distribution, the sum of the probabilities of all possible outcomes must be 1. In this case, we have to have
We're told that 
, and we're given other probabilities, so we have
The expected number of calls would be
![E[X]=\displaystyle\sum_xx\,P(X=x)](https://tex.z-dn.net/?f=E%5BX%5D%3D%5Cdisplaystyle%5Csum_xx%5C%2CP%28X%3Dx%29)
![E[X]=0\,P(X=0)+1\,P(X=1)+\cdots+4\,P(X=4)](https://tex.z-dn.net/?f=E%5BX%5D%3D0%5C%2CP%28X%3D0%29%2B1%5C%2CP%28X%3D1%29%2B%5Ccdots%2B4%5C%2CP%28X%3D4%29)
![E[X]=1.4](https://tex.z-dn.net/?f=E%5BX%5D%3D1.4)
Answer:
You would get 1.4
Step-by-step explanation:
First you divide 5 pounds by $28 your answer will be :<em> </em><em>5</em><em>.</em><em>6</em>
Than you divide 5.6 by 4 because 4 quarters make 1 whole
So, you divide 5.6 by 4
Than you get the answer 1.4.
About 6 that’s what I came up with
Total distance - biking distance = running distance
11.42 - 8.7 = 2.72 miles of run
Answer:
89.6 meters per minute
Step-by-step explanation:
