probabilities

The probability of an event is .....

• a number between 0 and 1

• the chance that the event occurs

• a fraction less than or equal to 1

• the likelihood of the event which must be in between 0 and 1

Tags

CCSS.7.SP.C.5

A chance of getting a 2 when you roll a fair dice is

• 1/2

• 2/6

• 1/6

• 0.2

Tags

CCSS.7.SP.C.5

The chance that tomorrow will rain is 0.8. How can i describe this probability in word?

• It is likely that it will rain tomorrow

• It is very likely that it will rain tomorrow

• It will definitely rain tomorrow

• it is an even chance that it will rain tomorrow

Tags

CCSS.7.SP.C.5

The chance of landing on green is

• 3/6

• 2/8

• 3/8

• 1/6

Tags

CCSS.7.SP.C.7A

The chance of getting a Head when flipping a fair coin is 50/50. Peter flips his coin 10 times and he gets only two Heads. So the chance of getting Head is really 2 out of 10. Why?

• Because Peter was not lucky enough. It should be an even chance of getting Head/Tail in coin flipping

• Because what we predict is different to what actually happen

• Because when you flip the coin once, the chance of getting Head is 50/50. But when you flip the coin more than once, this chance changes.

• Because Peter only flips 10 times, if he flips 100 times. The probability is going to be 50/50

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.6

A group of people were survey and the result is summarised above. How many percent of people surveyed only have dogs as pet?

• 25%

• 10%

• 35%

• 30%

Tags

CCSS.7.RP.A.3

A group of people were survey and the result is summarised above. How many people surveyed have cats or dogs as pet if 100 people were surveyed?

• 10

• 35

• 45

• 60

Tags

CCSS.7.RP.A.3

CCSS.7.SP.A.1

CCSS.7.SP.A.2

CCSS.7.RP.A.2

A group of people were survey and the result is summarised above. How many people surveyed have cats and dogs as pet if 100 people were surveyed?

• 10

• 25

• 45

• 60

Tags

CCSS.6.SP.A.2

CCSS.6.SP.B.5

Penny will play 2 games of badminton against Monica. P denotes a Penny win and M denotes a Monica win. The probability of Penny winning exactly one match is

• 1/4

• 0.5

• 3/4

• 0.4

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

Penny will play 2 games of badminton against Monica. P denotes a Penny win and M denotes a Monica win. The probability of Monica win the first match is

• 1/2

• 0.25

• 3/4

• 0.65

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7