PROBABILITY OF COMPOUND EVENTS

The probability that Aero will win a 200-m free style swimming competition is 1/4 . In the same competition, the probability that Angelo will win is 1/3 . Find the probability that either Aero or Angelo will win.

• 1/7

• 2/7

• 1/12

• 7/12

Tags

CCSS.HSS.CP.B.7

A card is drawn from a deck of 52 playing cards, what is the probability that it is a king or a red card?

• 3/13

• 4/13

• 5/13

• 7/13

Tags

CCSS.HSS.CP.B.7

In a school club, there are 4 Grade 7, 6 Grade 8, 14 Grade 9 and 11 Grade 10 JHS students. One student is chosen at random. What is the probability that the student chosen is a Grade 7 or a Grade 10?

• 2/7

• 3/7

• 4/7

• 5/7

Tags

CCSS.HSS.CP.B.7

In a deck of 52 cards, what is the probability of drawing a face card or numbered card?

• 9/13

• 10/13

• 11/13

• 12/13

Tags

CCSS.HSS.CP.B.7

In a class, there are 30 girls and 15 boys. 20 of the 30 girls like football and the rest of them like badminton. 10 of the 15 boys like football and the rest of them like badminton. Find the probability that the student selected randomly will be a girl?

• 2/3

• 2/9

• 2/15

• 1

Tags

CCSS.7.SP.C.7B

In a class, there are 30 girls and 15 boys. 20 of the 30 girls like football and the rest of them like badminton. 10 of the 15 boys like football and the rest of them like badminton. Find the probability that the student selected randomly will be a boy who likes football?

• 2/3

• 2/9

• 2/15

• 1

In a class, there are 30 girls and 15 boys. 20 of the 30 girls like football and the rest of them like badminton. 10 of the 15 boys like football and the rest of them like badminton. Find the probability that the student selected randomly will be a boy or a girl?

• 2/3

• 2/9

• 2/15

• 1

Tags

CCSS.HSS.CP.B.7

Stanley rolls a dice. What is the probability of getting 3 or 6?

• 1/3

• 1/6

• 2/3

• 5/6

In a pool, there are 20 balls and 40 blocks. 10 of the 20 balls are red and the rest of them are blue. 15 of the 45 blocks are green, 10 are red, and the rest of them are blue. Find the probability that the item picked randomly will be a ball?

• 1

• 1/2

• 1/3

• 1/6

Tags

CCSS.7.SP.C.7B

In a pool, there are 20 balls and 40 blocks. 10 of the 20 balls are red and the rest of them are blue. 15 of the 45 blocks are green, 10 are red, and the rest of them are blue. Find the probability that the item picked randomly will be a ball of red color?

• 1

• 1/2

• 1/3

• 1/6

Tags

CCSS.7.SP.C.7B