Case Study Questions for Class 9 Maths Chapter 15 Probability

Here we are providing Case Study Questions for Class 9 Maths Chapter 15 Probability.

Case Study Questions for Class 9 Maths Chapter 15 Probability

Case Study Questions

Question 1:

A jeweller has different types of bracelets in his shop. Sunita wants to purchase a bracelet for her sister’s birthday gift. When Sunita goes to shop, she founds the following data which represents the number of bracelets of different types in the shop.

(i) Find the probability that Sunita chooses Chain Bracelet.
(a) 23/180
(b) 37/180
(c) 37/90
(d) 23/90

(ii) Find the probability that she chooses Pearl bracelet.
(a) 23/180
(b) 37/180
(c) 37/90
(d) 23/90

(iii) What is the probability of a sure event?
(a) 1
(b) 0
(c) 1/2
(d) 2/3

(iv) What is the probability that she chooses neither Bangle bracelet nor Pearl bracelet?
(a) 23/180
(b) 45/180
(c) 109/180
(d) 23/45

(v) What is the probability that Sunita purchased a Cuff bracelet?
(a) 6/17
(b) 2/13
(c) 1
(d) 2/15

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Answer:

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