Transcript A box contains 40 red, 10 blue, and 10 white cards. Two are withdrawn, one after the other without a replacement. So there’s no replacement here. Find the probability that the first card is withdrawn. A first card is that is withdrawn is blue. Okay. So you can see that 40 plus 10 plus […]

Transcript A box contains five light globes, two of which are faulty. Two globes are selected, one at a time without replacement. Now, a! Find the probability that both globes are faulty. Now, two are faulty out of the five, so two out of five are faulty globes. Now we want, we know that there’s […]

Transcript Single digits are being generated randomly, so like these kind of numbers. It doesn’t have to be a five-digit number but these are the kind of things randomly generated. It can be any random number, okay? And it can be repeated or there’s no limit to this. So it’s like these kind of numbers. […]

Transcript They give you probability of a, b, c, and d in the question. Part a! They want us to find probability of a and b. Probability of a and b is simply probability of a times the probability of b which becomes 1 on 24. And that’s it, guys. That’s pretty much the product […]

Transcript Okay, if a and b are mutually exclusive and they give you what probability of a and probability of b is. They want us to find the probability of a or b. Now, the key thing here is mutually exclusive. What does mutually exclusive mean? Mutually exclusive means the probability of a and b […]

Transcript Two dice are thrown. One yellow and one white. Let y be the uppermost number on the yellow die and w be the uppermost number on the white die. I’ve drawn up a table because I know that if I drop a table, the questions will be so much easier. So I do recommend […]

Transcript Two normal dice are thrown and the sum of the two uppermost spaces is noted. So this time, we’re specifically, we’re going to look at the sum. So again that’s my table and I’m going to fill it up by adding out the outcomes, so one plus one is two, one plus two is […]