P&C and Probability Special Class

Two thirds of the students in a class are boys and the rest girls.It is known that the probability of a girl getting a first class is 0.25 and that of a boy getting a first class is 0.28 find the probability that a student chosen at random will get first class marks in the subject.

In a class two third students are boys and remaining are girls. The probability of getting first class by a boy is 0.30 and the probability of getting first class by a girl is 0.24. The probability of getting first class by a randomly selected student is:

Do the following activities. Total number of students in your class , n(S) = square Number of students from your class , wearing spectacles n (A) = square Probability of a randomly selets student wearing spectacles, P (A) = square Probability of a randomly selected student not wearing spectacles , P (B) = square

A, B, C are any three events. If P(S) denotes the probability of S happening, then P(A cap (B cup C)) =

The percentage of attendance of different classes in a year, in a school is ginve below: What is the probability that the class attendance is more than 75%?

Class 12 Maths Most Important MCQs | Probability | CBSE Board 2020

In a certain race there are three boys A, B, C. The winning probability of A is twice than B and the winning probability of B is twice than C. If P(A) + P(B) + P(C) = 1 , then find the probability of each boy.

The following Venn diagram shows three events, A, B, and C, and also the probabilities of the various intersections. Determine (a) P(A) (b) P(B nn barC) (c ) P(A uu B) (d) P(A nn barB) (e) P(B nn C) (f) Probability of the event that exactly one of A, B, and C occurs.

The accompanying Venn diagram shows three events, A, B and C and also the probabilities of the various intersections ["for instance", P (AcupB)=0.7]. Determine (i) P (A) (ii) P (Bcapoverset(-)C) (iii) P (AcupB) (iv) P (Acapoverset(-)B) (v) P (BcapC) (vi) Probability of exactly one of the three occurs.