Question

Probability
EXERCISE 25
(1)
1. When a coin was tossed 200 times, we obtained
Head : 118 times and Tail : 82 times.
When the coin is tossed at random, what is the probability of getting
(i) a head?
(ii) a tail?
2. A die is rolled 150 times and the outcomes are noted which are tabulated as shown below:
5
4.
6
3
Outcome
2
1
33
19
28
24
Frequency
17
29
When a die is rolled at random, find the probability of getting a :
1
(ii) 4
(iii) 5
3. Five cards numbered 1 to 5 are placed in a bag. A card is drawn from the bag 30 times. Each time,
the number on the drawn card is noted and the card drawn is replaced. The outcomes are tabulated
as shown below:
Outcome
5
1
3
2.
4
4
4
Frequency
5
7
10
If a card is now drawn at random, find the probability that the card drawn bears the number:
(1) 2
(ii) 3
(ii) 5
4. Two coins are tossed simultaneously 100 times. We obtained :
Two Heads : 23 times; One Head : 56 times; Zero Head : 21 times.
When two coins are tossed at random, what is the probability of getting:
(i) Two Heads? (i) One Head? (iii) Zero Head?
5. In a survery of 200 employees of a company, it was found that 89 liked the lunch packs provided by
the Company while the rest did not. Out of these employees, if one employee is chosen at random,
what is the probability that the chosen employee: (i) likes the lunch pack? (ii) dislikes the lunch pack?​

Answer 1

Answer:

I have got you a similar answer by which you can understand the whole case.

Step-by-step explanation:

A coin tossed 200 times.

Total number of times head appeared: 120

Probability of getting head: P(H)=

200

120

=

5

3

Probability of getting tail: P(T)=1−P(H)=1−

200

120

=1−

5

3

=

5

2

Answer