You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard IX

Mathematics

Range and Sum of Probabilities

Out of 100 pe...

Question

Out of 100 people, 40 like rock music and 60 don't. The probability of picking a person who likes rock music will be?

0.4

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

0.5

No worries! We‘ve got your back. Try BYJU‘S free classes today!

0.3

No worries! We‘ve got your back. Try BYJU‘S free classes today!

0.7

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A 0.4
Probability = $\frac{N u m b e r o f f a v o u r a b l e o u t c o m e s}{T o t a l n u m b e r o f o u t c o m e s}$

Probability of picking a person who likes rock music = $\frac{40}{100} = 0.4$

Suggest Corrections

Similar questions

Q. A radio station surveyed

190

students to determine the types of music they liked. The survey revealed that

114

liked rock music,

50

liked folk music and

41

liked classical music,

14

liked rock music and folk music,

15

liked rock music and classical music,

11

liked classical music and folk music,

5

liked all the three of music.
Find:
(i) How many did not like any of the

3

types?
(ii) How many liked any two types only?
(iii) How many liked folk music but not rock music?

Q. A radio station surveyed

190

students to determine the types of music they liked. The survey revealed that

114

liked rock music,

50

liked folk music, and

41

liked classical music, 14 liked rock music and folk music,

15

liked rock music and classical music,

11

liked classical music and folk music.

5

liked all the three types of music. Find
(i) how many did not like any of the 3 types?
(ii) how many liked any two types only?
(iii) how many liked folk music but not rock music ?

Q. How many liked folk music but not rock music?

Q. Who among the following do not like music ?

Q. In a class of

60

students,

45

students like music,

50

students like dancing,

5

students like neither. Then the number of students in the class who like both music and dancing is

Join BYJU'S Learning Program

Out of 100 people, 40 like rock music and 60 don't. The probability of picking a person who likes rock music will be?

The correct option is A 0.4Probability = Number of favourable outcomesTotal number of outcomes Probability of picking a person who likes rock music = 40100=0.4

The correct option is A 0.4
Probability = $\frac{N u m b e r o f f a v o u r a b l e o u t c o m e s}{T o t a l n u m b e r o f o u t c o m e s}$

Probability of picking a person who likes rock music = $\frac{40}{100} = 0.4$