ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
Statistics and Probability Videos 134 videos
Statistics, Data, and Probability I: Drill Set 3, Problem 4. How many different avatars can be created based on the given options?
Statistics, Data, and Probability II Drill 3 Problem 2. Which two sports together make up for the preferences of more than half of all those w...
ACT Math 3.2 Pre-Algebra 436 Views
Share It!
Description:
ACT Math: Pre-Algebra Drill 3, Problem 2. What is the probability that a red queen will be drawn?
- Pre-Algebra / Simple probability
- Product Type / ACT Math
- Foreign Language / Spanish Subtitled
- Foreign Language / Arabic Subtitled
- Foreign Language / Korean Subtitled
- Foreign Language / Chinese Subtitled
- Statistics and Probability / Compute probabilities of compound events
- Statistics and Probability / Use rules of probability to compute probabilities of compound events
- Pre-Algebra / Elementary counting technique and simple probability
Transcript
- 00:03
Here's your shmoop du jour: A card is drawn at random from a 52 card deck.
- 00:08
What is the probability of drawing both a red card and a queen?
- 00:13
For this problem, let's assume Criss Angel is at least 500 yards away.
- 00:17
Here are the potential answers...
- 00:22
Ooh, a card problem. Vegas, baby!
Full Transcript
- 00:25
So... even if we haven't lost our shirt at the blackjack tables...
- 00:28
...hopefully we're at least familiar with a card deck...
- 00:31
It has 52 cards, with 13 cards in each of 4 suits -- the red suits are diamonds and
- 00:37
hearts; the black suits are clubs and spades.
- 00:41
So ONE card is drawn and they are asking for a RED QUEEN.
- 00:45
Uh... no -- these queens.
- 00:48
Well, there are only 2 cards that are both red AND a queen --
- 00:52
-- the queen of hearts and the queen of diamonds.
- 00:55
So the odds of pulling EITHER of those cards is a 2 out of 52 chance
- 01:00
or, if we reduce the fraction...
- 01:01
...1 out of 26
- 01:03
The answer is E.
- 01:04
As in, "Easy money."
Related Videos
ACT Math: Plane Geometry Drill 3, Problem 1. What is the area of the trapezoid shape in the video?
ACT Math: Coordinate Geometry Drill 1, Problem 1. Which inequality is expressed by the number line?
ACT Math: Intermediate Algebra: Drill 3, Problem 1. Find the fifth number in the series.
SAT Math: Statistics and Probability Drill 1, Problem 2. If the four largest numbers in the set were doubled, what would happen to the median...
SAT Math 1.4 Statistics and Probability. If two standard 6-sided dice are rolled, what is the probability that the sum of the dice will be gre...