What\'s wrong? In each of the following scenarios, there is something wrong. Des

Question

What's wrong? In each of the following scenarios, there is something wrong. Describe what is wrong and give a reason for your answer. If the sample space consists of two outcomes, then each outcome has probability 0.5. If we select a digit at random, then the probability of selecting a 2 is 0.2. If the probability of A is 0.2, the probability of B is 0.3, and the probability of A and B is 0.5, then A and B are independent. Playing the lottery. An instant lottery game gives you probability 0.02 of winning on any one play. Plays are independent of each other. If you play five times, what is the probability that you win at least once?

Explanation / Answer

4.50

A)

The two outcomes need not be of the same probability. Hence, for as long as the total probability is 1 (Say, 0.3 and 0.7), it is okay.

****************

b)

There are 10 digits, 0-9. Hence, selecting a 2 has probability

P(2) = 1/10 = 0.1.

*************

c)

The probability of (A and B) can never exceed the probabilities of A and B themselves.

*******************************************

Hi! Please submit the next part as a separate question. That way we can continue helping you! Please indicate which parts are not yet solved when you submit. Thanks!

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.