A few days ago

# Another Probability question please help?

” A card is drawn form a deck of cards numbered one through twenty. The card is NOT REPLACED and another card is drawn. Find the probability of the outcome”

question 1: two even numbers are drawn in a row

question 2: an even number then an odd number

Please if you can show me how to do math or explain your thinking.

-thanks alot 🙂

Top 2 Answers

A few days ago

Favorite Answer

(1) The probability of drawing an even number off the bat is 10/20. The probability of drawing a second even number is 9/19. Think about it: you’ve already drawn an even card without replacing it, so there are 9 even cards left out of 19 remaining cards.

The probability is (10/20)*(9/19)= 9/38

(2) The probability of drawing an even number is again 10/20. The probability of drawing an odd number, now that there are only 19 remaining cards, is 10/19. Unlike in (1), there are still 10 odd cards left in the deck.

The probability is (10/20)*(10/19)= 5/19

0

A few days ago

A1. 25%

A2. 50%

a1 do a diagram with heads and tails. there are only two kinds of numbers.(2 posibilities)

a2 really easy. 50-50

0

- Academic Writing
- Accounting
- Anthropology
- Article
- Blog
- Business
- Career
- Case Study
- Critical Thinking
- Culture
- Dissertation
- Education
- Education Questions
- Essay Tips
- Essay Writing
- Finance
- Free Essay Samples
- Free Essay Templates
- Free Essay Topics
- Health
- History
- Human Resources
- Law
- Literature
- Management
- Marketing
- Nursing
- other
- Politics
- Problem Solving
- Psychology
- Report
- Research Paper
- Review Writing
- Social Issues
- Speech Writing
- Term Paper
- Thesis Writing
- Writing Styles