Equally Likely

Are the chances of rolling a die and getting a multiple of 3, and rolling a die and getting a multiple of 2 equally likely?  Explain.

• Not Equally Likely!  There is 1/2 of a chance of getting a multiple of 2 and 1/3 of a chance of getting a multiple of 3. 
• Equally Likely!  There is 1 two and 1 3 on a die. 
• Not Equally Likely!  There is a 1/3 of a chance of getting a multiple of 2 and 1/2 of a chance of getting a multiple of 3. 
• Equally Likely!  You are using the same fair die. 

Tags

CCSS.7.SP.C.7A

Are the chances of rolling a die and getting an odd number and rolling a die and getting an even equally likely?  Explain.

• Not Equally Likely!  There are 6 numbers on a die. 
• Equally Likely!  There are 3 ways to get odd and 3 ways to get even. 
• Not Equally Likely!  It depends on how you roll the die. 
• Equally Likely!  The probability of each is 1/6.

Tags

CCSS.7.SP.C.7A

State if the possible results are equally likely or not equally likely for the following situation:
When a person checks the temperature outside, the temperature is greater than 50 degrees or less than 50 degrees. 

• Not Equally Likely!  This depends on the season and location.  
• Not Equally Likely!  There is a higher chance of it being greater than 50 degrees. 
• Equally Likely!  There are two options. 
• Equally Likely!  Each choice has the same probability. 

Tags

CCSS.7.SP.C.7A

State if the possible results are equally likely or not equally likely for the following situation:
When you choose a card at random from a deck without jokers, the card is a spade, heart, diamond, or club. 

• Not Equally Likely!  This depends on how you shuffle the cards. 
• Not Equally Likely!  There are more hearts than diamonds. 
• Equally Likely!  1/2 of the cards are red and the other half are black. 
• Equally Likely! There are 13 cards of each suit. 

Tags

CCSS.7.SP.C.7B

True or False:  You have an equally likely chance of  stealing second base during a baseball game. 

• True!  There are two possible options:  You are successful or you are out. 
• False:  This is based on skill and we can not make that decision without further research. 

Tags

CCSS.7.SP.C.7A

True or False: If you spin this spinner once, landing on one and landing on 2 have the same probability. 

• True:  There are 3 spaces for you to land on each of those numbers 
• False:  The space of 2 on the spinner is greater than the space for 1. 

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

Equally Likely means....

• ...that the probability is 1/2.
• ...that the probability is the same for each event. 
• ...that no one can cheat during the event/game.
• ...the odds are 50/50.

Tags

CCSS.7.SP.C.7A

A game in which each player is equally likely to win.

• Payoff
• Random
• Sample Space
• Fair Game