class 6 probability assignment
Q1. what is the probability of occurence of an event ?
Q3. a card is taken at random from a pack of fifty two cards. what is the prob that
a) a red
b) a queen
c) a red Ace
d) a seven hearts
e) an Even number
Q4. A packet of sweet contains 19 red, 11 green, 10 yellow sweets. what is the prob
a) a red
b) not green
c) red or yellow
d) not red or yellow
Q5. you roll a fair dice . what is the prob.that you obtain
a) five
b) multiple of 3
c) LCM of 1and 3
d) not a 4
Q6. Balls numbered 1 to 50 are placed in a box, and one is selected at random. Determine the probability of:
a) Selecting a multiple of 9
b) Not selecting a multiple of 9
c) Selecting a prime number
Q7. Four blue and three white discs are placed in a bag, and one disc is randomly selected from it. What is the probability of selecting:
a) A blue disc
b) a white disc?
Q8. a) If you were to roll the dice one time what is the probability it will land on a 5?
b) If you were to roll the dice one time what is the probability it will NOT land on a 4?
c) If you were to roll the dice one time, what is the probability of it landing on an odd number?
Q9. There are 20 cards in a pack . One card is chosen at random. Find the prob
a) 5 = P(5) = 1/20
b) Less than 5= 4/20 = 1/5
c) A multiple of 5 =
Outcomes= 5,10,15,20
P= 4/20= 1/5
d) a Prime number
Outcome= 2,3,5,7,11,13,17,19
P= 8/20= two/5
e) Lcm of 2 and 3
outcome = 6
P= 1/Twenty
Q10. There are 7 girls, 5 boys, 9 men and 4 women in a class.
What is the prob.of chosen
a) a women = 4/twenty five
b) male = 9+5 = 14/ twenty five
Q11. There are 13 black pens, 16 blue pens and 8 red pens in a box.
What is the prob that
a) Black = 13/37
b) Black or red= twenty one /37
c) not red = twenty nine/37
d) not blue = twenty one /37
e) blue or red = twenty four/ 37
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