Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

From a group of 100 students, 50 study History, 30 study English Literature and 20 study both. If a student is selected at random from the , what is the probability that the student studies. (a) at least one of these subjects. (b) History nut not English Lierature. History, given that the student also studies English Lierature?

From a group of 100 students, 50 study History, 30 study English Literature and 20 study both. If a student is selected at random from the , what is the probability that the student studies.


(a) at least one of these subjects.


(b) History nut not English Lierature.


History, given that the student also studies English Lierature?

Grade:

1 Answers

Pramod J AskiitiansExpert-IIT-B
36 Points
10 years ago

Dear student,

since 20 study both,

no. of students study only history = 50-20 = 30

no. of students study only english = 30-20 = 10

=> number of students study atleast one subject = 30+10+20 = 60

probability that student studies atleast one subject = 60/100 = 0.6

probability that student studies history but not english = 10/100 = 0.1

probability that a student studies history given that he studies english = 20/30 = 0.66

 

i hope it explains 

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free