## RS Aggarwal Class 7 Solutions Chapter 23 Probability Ex 23

These Solutions are part of RS Aggarwal Solutions Class 7. Here we have given RS Aggarwal Solutions Class 7 Chapter 23 Probability Ex 23.

**Question 1.**

**Solution:**

(i) Here, total number of trials = 300

Number of heads got = 136.

P(E) = \(\frac { 136 }{ 300 }\) = \(\frac { 34 }{ 75 }\)

(ii) Total number of trials = 300

Number of tails got = 164

P(E) = \(\frac { 164 }{ 300 }\) = \(\frac { 41 }{ 75 }\)

**Question 2.**

**Solution:**

Number times, the two coins were tossed = 200

Number of times got two heads = 58

Number of times got one head = 83

and number of times got no head = 59

(i) Probability of getting 2 heads : P(E) = \(\frac { 58 }{ 200 }\) = \(\frac { 29 }{ 100 }\)

(ii) Probability of getting one head : P(E) = \(\frac { 83 }{ 200 }\)

(iii) Probability of getting no head : P(E) = \(\frac { 59 }{ 200 }\)

**Question 3.**

**Solution:**

Number of times, a dice was thrown = 100

(i) Number of times got 3 = 18

Probability will be

P(E) = \(\frac { 18 }{ 100 }\) = \(\frac { 9 }{ 50 }\)

(ii) Number of times got 6 = 9

Probability will be

P(E) = \(\frac { 9 }{ 100 }\)

iii) Number of times got 4 = 15

Probability will be

P(E) = \(\frac { 15 }{ 100 }\) = \(\frac { 3 }{ 20 }\)

(iv) Number of times got 1 = 21

Probability will be

P(E) = \(\frac { 21 }{ 100 }\)

**Question 4.**

**Solution:**

Total number of ladies = 100

Number of ladies also like coffee = 36.

Number of ladies who dislike coffee = 64

(i) Probability of lady who like coffee :

P(E) = \(\frac { 36 }{ 100 }\) = \(\frac { 9 }{ 25 }\)

(ii) Probability of lady who dislikes coffee:

P(E) = \(\frac { 64 }{ 100 }\) = \(\frac { 16 }{ 25 }\)

Hope given RS Aggarwal Solutions Class 7 Chapter 23 Probability Ex 23 are helpful to complete your math homework.

If you have any doubts, please comment below. Learn Insta try to provide online math tutoring for you.