Answer: Probability
Step-by-step explanation:
Probability is the number of ways an event can occur, happen or take place (number of outcomes), f, divided by the total number of outcomes, N, is the probability of of an event occurring,
Therefore; P(E) = f/N. E.g When a dice is tossed, there is a 1/6 chance of getting a 3 because a dice has six sides.
85.7%
4500/5250=.857
move decimal 2 places to the right to convert a decimal to a percentage
Answer:
0.3913 = 39.13% probability that the student did not attend class regularly given that (s)he did not receive an above average grade
Step-by-step explanation:
Conditional Probability
We use the conditional probability formula to solve this question. It is
In which
P(B|A) is the probability of event B happening, given that A happened.
is the probability of both A and B happening.
P(A) is the probability of A happening.
In this question:
Event A: Did not receive an above average grade.
Event B: Did not attend class regularly.
Probability of an student not receiving an above average grade:
100 - 40 = 60% of 70%(attend class regularly).
100 - 10 = 90% of 100 - 70 = 30%(do not attend class regularly).
So
Did not receive an above average grade and did not attend class regularly:
90% of 30%. So
Find the probability that the student did not attend class regularly given that (s)he did not receive an above average grade
0.3913 = 39.13% probability that the student did not attend class regularly given that (s)he did not receive an above average grade