A card is drawn from a standard deck of 52 cards. What is the probability that the card is a diamond or a king?
Table of contents
- 0. Fundamental Concepts of Algebra3h 32m
- 1. Equations and Inequalities3h 27m
- 2. Graphs1h 43m
- 3. Functions & Graphs2h 17m
- 4. Polynomial Functions1h 54m
- 5. Rational Functions1h 23m
- 6. Exponential and Logarithmic Functions2h 28m
- 7. Measuring Angles40m
- 8. Trigonometric Functions on Right Triangles2h 5m
- 9. Unit Circle1h 19m
- 10. Graphing Trigonometric Functions1h 19m
- 11. Inverse Trigonometric Functions and Basic Trig Equations1h 41m
- 12. Trigonometric Identities 2h 34m
- 13. Non-Right Triangles1h 38m
- 14. Vectors2h 25m
- 15. Polar Equations2h 5m
- 16. Parametric Equations1h 6m
- 17. Graphing Complex Numbers1h 7m
- 18. Systems of Equations and Matrices3h 6m
- 19. Conic Sections2h 36m
- 20. Sequences, Series & Induction1h 15m
- 21. Combinatorics and Probability1h 45m
- 22. Limits & Continuity1h 49m
- 23. Intro to Derivatives & Area Under the Curve2h 9m
21. Combinatorics and Probability
Probability
Multiple Choice
In your coin purse, you have 3 quarters, 4 nickels, & 2 dimes. If you pick a coin at random, what is the probability that it will be a quarter?
A
0.33
B
0.44
C
0.50
D
0.66
0 Comments
Verified step by step guidance1
First, identify the total number of coins in the purse. You have 3 quarters, 4 nickels, and 2 dimes. Add these together to find the total number of coins: 3 + 4 + 2.
Next, determine the number of favorable outcomes for the event of picking a quarter. Since you have 3 quarters, the number of favorable outcomes is 3.
To find the probability of picking a quarter, use the formula for probability: \( P(quarter) = \frac{\text{number of quarters}}{\text{total number of coins}} \).
Substitute the values into the formula: \( P(quarter) = \frac{3}{3 + 4 + 2} \).
Simplify the expression to find the probability. This will give you the probability of picking a quarter from the coin purse.
Related Videos
Related Practice
Multiple Choice
357
views

