Answered You can buy a ready-made answer or pick a professional tutor to order an original one.
Example 1: Consider another example where a pack contains 4 blue, 2 red and 3 black pens. If a pen is drawn at random from the pack, replaced and the process repeated 2 more times, What is the probab
Example 1:
Consider another example where a pack contains 4 blue, 2 red and 3 black pens. If a pen is drawn at random from the pack, replaced and the process repeated 2 more times, What is the probability of drawing 2 blue pens and 1 black pen?
Example 2:
What is the probability of drawing a king and a queen consecutively from a deck of 52 cards, without replacement.
- @
- 9 orders completed
- ANSWER
Solution 1;
Here, total number of pens = 9
Probability of drawing 1 blue pen = 4/9Probability of drawing another blue pen = 4/9Probability of drawing 1 black pen = 3/9Probability of drawing 2 blue pens and 1 black pen = 4/9 * 4/9 * 3/9 = 48/729 = 16/243
Solution 2;
Probability of drawing a king = 4/52 = 1/13
After drawing one card, the number of cards are 51.
Probability of drawing a queen = 4/51.
Now, the probability of drawing a king and queen consecutively is 1/13 * 4/51 = 4/663