The mean number of bacteria in the single cell of a haemocytometer is 2. let
n be the number of bacteria actually observed in a cell. find:
(i) pr(n = 0)
(ii) pr(n = 3)
(iii) pr(n > 2)

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18