Sangster Math April 22

Grade Six EQAO booklet if you want to practice

https://drive.google.com/file/d/1CHe99ePxCVGovUgxZYLAsRBHbSBmX8fj/view?usp=sharing

 Playing Cards

 

 

 

We don’t count Jokers in this probability work.

 

How many cards in a deck? 52 cards

How many red cards? 52/2 = 26 red cards

How many black cards? 52/2 = 26 black cards

 

How many suits are there? Four suits (hearts, diamonds, spades and clubs)

 Spade Heart               8 Club

 

 

 

 

 

 

 

9 diamond

 

 

 

 

 

 

 

Probability in playing cards

 

a.     What is the probability of picking a red card from a deck? 26/52 or 0.50 or 50%

b.    What is the probability of picking a diamond from a deck? 13/52 or 0.25 or 25%

c.     What is the probability of picking a King from a deck? (4 kings) 4/52, 8%

d.    What is the probability of picking a black diamond card from a deck? 

0% - all diamonds are black

e.     What is the probability of picking an “8” card and then a “6” card from a deck?

Picking an “8” card = 4/52 = 0.077

Picking an “6” card = 4/52 = 0.077

 

These two conditions must occur together. Then we multiply the two probability together

0.077 x 0.077 = 0.0059 or 0.59% chance that this will happen

 

 

Homework this weekend

f.      What is the probability of picking an “A” card and then an “10” card from a deck? 

(Black Jack)

 

g.     What is the probability of picking three “7” cards in a row from a deck?

7-7-7

 

h.    What is the probability of picking two red cards in a row from a deck?