RY SHORT ANSWER QUESTIONS
1. The probability of an impossible event is
2. What is the probability of getting an even number when a die is rolled?
3. The probability of a
event is 1.
4. Sum of all elementary events is
5. Can be a probability of an event?
6. If the probability of winning a game is 0.27, then what is the probability of loosing
the game?
7. Getting a number greater than 10 while rolling a die is an example of
event
2 X 2 = 4
ORT ANSWER QUESTIONS
8. When two coins are tossed together, Find the probability of getting
(0) One head
Two heads
9. A bag contains 7 red balls, 5 blue balls and 8 green balls. From the bag one ball is
chosen at random. Find the probability of getting.
(i) Not a blue ball (m)
A green ball
2x3 = 6
NG ANSWER QUESTIONS
10. When three coins are tossed together, find the probability of getting
(0) Atleast two heads
Atmost two heads
Exactly two heads
11. A card is chosen at random from the cards bearing numbers 1 to 25. Find the
probability that the chosen card has
(i) A prime number on it.
An even number on it.
A product of 12 or a product of S.
Y LONG ANSWER QUESTIONS
2 X 4 = 8
12. From a deck of 52 playing cards one card is chosen at random, What is the
probability of getting
A number card?
A red face card?
King of hearts?
(iv) Either a king or a red card?
13. When two dice are rolled together find the probability of getting
(1) Sum of number appearing on the top is 6.
Answers
Answer:
1.The probability of an impossible event is 0
2.3/6=1/2
4. The sum of the probabilities of all the elementary events of an experiment is 1
5.The probability of an event is a number describing the chance that the event will happen. An event that is certain to happen has a probability of 1. An event that cannot possibly happen has a probability of zero. If there is a chance that an event will happen, then its probability is between zero and 1.
6.0.73
8.When three coins are tossed together, the total number of outcomes =4
HH,HT,TH,Tt
one head=HT,TH,HH=3/4
two heads=HH=1/4
9. red=7
blue=5
green=8
total=7+5+8=20
not a blue ball=green+red/total balls
=8+7/20
=15/20
3/4
green ball=total number of green balls/total balls
=8/20
4/5
10.When three coins are tossed together, the total number of outcomes =8
HHH,HHT,HTH,HTT,TTT,TTH,THT,THH
atleast two heads=HHT,HTH,THH,HHH
=4/8
=1/2
exactly two heads=HHH,HHT,HTH,THH
=4/8
=1/2
12.total cards=52
number cards=40/52
a red face card=2/52
kings of heart=1/52
either a king or a red card=16/52
please remind me if any answer is wrong
Answer:
owa owa
Step-by-step explanation:
owa owa