An instructor has a question bank consis...

An instructor has a question bank consisting of 300 easy True/False question,200 difficult true/false questions, 500 easy multiple choice questions and 400 difficult multiple choice questions. If a question is selected from the test question bank, what is the probability that it will be an easy question given that it is a multiple choice question?

Topper's Solved these Questions

MATRICES
V PUBLICATION|Exercise QUESTION BANK|100 Videos
RELATIONS AND FUNCTIONS
V PUBLICATION|Exercise QUESTION BANK|114 Videos

Similar Questions

Explore conceptually related problems

On a multiple choice examination with three possible answers for each of the five questions what is the probability that a candidate would get four or more correct answers just by guessing?

In an examination 20 question of true false type are asked suppose a student tosses a fair coin to determine his answer to each question if the coins falls heads he answers true if it falls tail he answers false find the probability thet he answers at least 12 question correctly.

A student is to answer 10 out of 13 questions in an examinations such that he must choose at least 4 from the first five questions . The number of choices available to him is :

In an examination a question paper consists of' 12 questions divided into 2 parts I and II containing 5 and 7 questions respectively. A student is required to attempt 8 questions. In how many ways the student can select 4 questions from part I and 4 questions from part II.

In an examination a question paper consists of' 12 questions divided into 2 parts I and II containing 5 and 7 questions respectively. A student is required to attempt 8 questions. In how many ways the student can select 5 questions from part I and 3 questions from part II.

Analyse the given reactions and answer the following questions. What is the name of reaction by which 'B' is formed?

In an E. coli culture lactose is used as food instead of glucose. If so, answer the following questions: If lactose is removed from the medium what will happen?

V PUBLICATION-PROBABILITY-QUESTION BANK

A fair die is rolled. Consider the events E={1,3,5}, F = {2,3} and G...
Text Solution
|
Assume that each born child is equally likely to be a boy or a girl. I...
Text Solution
|
An instructor has a question bank consisting of 300 easy True/False qu...
Text Solution
|
Given that the two numbers appearing on throwing two dice are differen...
Text Solution
|
Consider the experiment of throwing a die,if a multiple of 3 comes up ...
Text Solution
|
If P(A)=1/2, P(B)=0, then P(A | B) is A)0 B)1/2 C)not defined D)1
Text Solution
|
If A and B are event's such that P(A | B)=P(B | A), then A)A subset B ...
Text Solution
|
An urn contains 10 black and 5 white balls. Two balls are drawn from t...
Text Solution
|
Three cards are drawn successively, without replacement from a pack of...
Text Solution
|
A die thrown.If E is the event 'the number appearing is a multiple of ...
Text Solution
|
An unbiased die is thrown twice. Let A be the event 'odd number on th...
Text Solution
|
Three coins are tossed simultaneously. Consider the event E three head...
Text Solution
|
If A and B are two independent events, then Prove that A and B^'are ...
Text Solution
|
If A and B are two independent events, then show that the probabilit...
Text Solution
|
Given P(A)=3/5 and P(B)=1/5 Find P(A or B), if A and B are mutually ...
Text Solution
|
Two cards are drawn at random . Without replacement from a pack of 52 ...
Text Solution
|
A box of oranges is inspected by examining three randomly selected ora...
Text Solution
|
A Fair coin and an unbiased die are tossed. Let A be the event 'head a...
Text Solution
|
A die marked 1,2,3 in red and 4,5,6 in green is tossed. Let A be the e...
Text Solution
|
Let E and F be events with P(E) = 3/5,P(F) = 3/10 and P(EnnF)=1/5.A...
Text Solution
|