Probability and Conditional Probability MCQ Quiz in मल्याळम - Objective Question with Answer for Probability and Conditional Probability - സൗജന്യ PDF ഡൗൺലോഡ് ചെയ്യുക

The probability of drawing a non-red marble is the complement of drawing a red marble. There are 10 red marbles out of 40, so 30 are not red. Therefore, the probability is . Thus, option 2 is correct. Other options are based on incorrect calculations or misunderstandings of the problem.

The probability that a smartphone is defective is given by the number of defective smartphones divided by the total number of smartphones. Here, 12 out of 60 are defective, so the probability is . Thus, option 1 is correct. Incorrect options arise from errors in simplification or arithmetic.

The probability of winning is given as . Therefore, the probability of not winning is . Thus, the correct answer is . 

The total number of light bulbs is 50, and the number of defective bulbs is 8. Therefore, the number of non-defective bulbs is . The probability that a randomly selected bulb is not defective is . The correct answer is , option 1 is the  correct answer . 

The probability of selecting a student who is not in the chess club is the complement of selecting one who is in the club. There are 50 students in the chess club, so 150 are not. The probability is . Hence, option 2 is correct. 

To find the probability that an employee uses public transportation, we first note that 15 out of 75 employees use it. The probability is calculated by dividing the number of favorable outcomes by the total number of outcomes. Therefore, the probability is . Thus, the correct answer is . The other options result from incorrect simplifications or arithmetic errors.

If 70% of the students are male, then 30% are female, since the total must be 100%. Calculate 30% of 30 to find the number of females: . Hence, there are 9 female students, which is option 3.

The probability of rolling a 6 is . The probability of the complement event (not rolling a 6) is . Therefore, the probability of not rolling a 6 is , which is option 4.

There are a total of marbles. The probability of drawing a non-blue marble is the number of non-blue marbles divided by the total number of marbles. There are non-blue marbles. Thus, the probability is . Option 3 is correct answer.

The total number of balls is .

The number of blue or yellow balls is .

Thus, the probability of drawing a blue or yellow ball is .

However, to match the options, we present directly, which simplifies to , but the unsimplified version corresponds to option 2.