Median is just the middle number. If you put all the numbers in order from least to greatest: 4,5,6,7,8,9,10 Then you can find the one in the middle. In this case it’s 7.
Number of Senators be n=5 Probability that the Senators will strongly support the tax proposal be Let X be the number of Senators will strongly support the tax proposal. Using Binomial Distribution, Now Plug in the values of n and p,