about 117 hours bc there are about 52 weeks in a year. And one week of 3 lessons is 2 (1/4)hrs. And 2(1/4) × 52 = 117 hrs
what even is this question
The first people cuz of the formula
Answer:
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Answer:
explained
Step-by-step explanation:
(i) Let A be the event that a student takes statistics subject as a major.
Let B be the event a student gets a job.
Two events (or propositions) are mutually exclusive or disjoint if they cannot both occur (be true). A clear example is the set of outcomes of a single coin toss, which can result in either heads or tails, but not both.
In this case, the event A and B are not mutually exclusive.
Therefore, P(A or B) = P(A U B) = P(A) + P(B) − P(A ∩ B)