Table of contents

1. Introduction to Statistics53m
2. Describing Data with Tables and Graphs2h 1m
3. Describing Data Numerically1h 48m
4. Probability2h 26m
5. Binomial Distribution & Discrete Random Variables2h 55m
6. Normal Distribution & Continuous Random Variables1h 48m
7. Sampling Distributions & Confidence Intervals: Mean2h 8m
8. Sampling Distributions & Confidence Intervals: Proportion1h 20m
- Sampling Distribution of Sample Proportion
  35m
- Confidence Intervals for Population Proportion
  45m
9. Hypothesis Testing for One Sample2h 23m
10. Hypothesis Testing for Two Samples3h 25m
11. Correlation1h 6m
12. Regression1h 4m
13. Chi-Square Tests & Goodness of Fit1h 30m
14. ANOVA1h 4m

4. Probability

Addition Rule

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

If a single card is randomly selected from a deck of cards, what is the probability of selecting an ace or a king?

$0.0059$

$0.077$

$0.15$

$0.85$

Verified step by step guidance

Step 1: Understand the problem by identifying the total number of possible outcomes. A standard deck of cards has 52 cards.

Step 2: Determine the number of favorable outcomes. There are 4 aces and 4 kings in a deck, making a total of 8 favorable outcomes.

Step 3: Use the probability formula: $ P(A ext{ or } K) = \frac{\text{Number of favorable outcomes}}{\text{Total number of possible outcomes}} $.

Step 4: Substitute the values into the formula: $ P(A ext{ or } K) = \frac{8}{52} $.

Step 5: Simplify the fraction to find the probability of selecting an ace or a king from the deck.

Master Probability of Mutually Exclusive Events with a bite sized video explanation from Patrick

Related Videos

Related Practice

For two mutually exclusive events A and B, compute $P\left(A\cup B\right)$ if $P\left(A\right)=0.15$ and $P\left(B\right)=0.32$

A card is drawn from a standard deck of 52 cards. What is the probability that the card is a diamond or a king?

For two mutually exclusive events A and B, compute $P\left(A\cup B\right)$ if $P\left(A\right)=0.15$ and $P\left(B\right)=0.32$