There are 35 cells with no molecules, 25 with one molecule, 25 with two molecules, and 15

Question:

There are 35 cells with no molecules, 25 with one molecule, 25 with two molecules, and 15 with three molecules.
Suppose that the number N of molecules of toxin left in a cell after 10.0 min is thought to follow the probability with Pr(N = 0) = 0.4, Pr(N = 1) = 0.3, Pr(N = 2) = 0.2, and Pr(N = 3) = 0.1 (as in Example 6.3.11). Test whether the following data fit the expectation from this extrinsic hypothesis.
Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...