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Answer 1

Step-by-step explanation:

Solutions:-

32) Option (C)

Let the total probability = 100%

Probability of raining tomorrow = 20%

Probability of not raining tomorrow

= 100% -20%

= 80%

33)Option (D)

Number of red marbles in a glass jar = 10

Number of green marbles in a glass jar = 5

Number of blue marbles in a glass jar = 6

Number of yellow marbles in a glass jar = 4

Total marbles in the glass jar

= 10+5+6+4

= 25

Total number of all possible outcomes = 25

Number of favourable outcomes to green marbles = 5

Probability of an event = Number of favourable outcomes/ Total number of all possible outcomes

Probability of getting a green marble

= 5/25 or 1/5

34)Option (C)

If a coin tossed once

The possible outcomes = 2

They are Head and Tail

Probability of an event = Number of favourable outcomes/ Total number of all possible outcomes

Probability of getting a head = 1/2 or 0.5 or 50%

35)Option (C)

If a balanced die is rolled then the possible outcomes are 1,2,3,4,5,6

Total possible outcomes = 6

The favourable outcomes except 3 = 5

Probability of an event = Number of favourable outcomes/ Total number of all possible outcomes

=> 5/6

36)Option (B)

There are 4 aces in a deck of cards they are

Ace in diamons

Ace in Hearts

Ace in Spades

Ace in Clubs

Number of favourable outcomes to ace = 4

37)Option (D)

There are 52 cards in a deck of playing cards

Total number of all possible outcomes = 52

38)Option (A)

There are 13 diamondss in the deck of cards

Number of favourable outcomes to diamond = 13

Total number of all possible outcomes = 52

Probability of an event = Number of favourable outcomes/ Total number of all possible outcomes

=> 13/52

=> 1/4

=>0.25 or 25%

39) Option (A)

40)Option D

Valentine's day celebrate on Feb-14th

41)Option (D)

Sunday and Saturdays are starting with S

42)Option (A)

There are 18 letters in the given word

and There are 3 U and I

So Number of favourable outcomes to U and I = 3

Total number of all possible outcomes = 18

Probability of an event = Number of favourable outcomes/ Total number of all possible outcomes

=> 3/18

=> 1/6

Probability of getting U and I = 3/18 or 1/6

43) Option (A)&(B)

Total number of cards = 12

They are numbered in them from 1 to 12

Out of them composite numbers = 4,6,8,9,10,12

Number of favourable outcomes to Composite number = 6

Total number of all possible outcomes = 12

Probability of an event = Number of favourable outcomes/ Total number of all possible outcomes

=6/12

= 1/2

Probability of getting a Composite number = 6/12 or 1/2

44) Option (B)&(C)

Number of boys = 15

Number of girls = 20

Number of favourable outcomes to girls = 20

Total number of students = 15+20 = 35

Total number of all possible outcomes = 35

Probability of an event = Number of favourable outcomes/ Total number of all possible outcomes

= 20/35

= 4/7

Probability of getting a girl = 20/35 or 4/7

45) Experimental probability

we conclude the result by testing

Used formulae:-

• Probability of an event = Number of favourable outcomes/ Total number of all possible outcomes