The probability that a teacher will give...

The probability that a teacher will give an unannounced test during any class meeting is 1/5. If a student is absent twice, find the probability that the student will miss at least one test.

`7//25`

`9//25`

`16//25`

`24//25`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

PROBABILITY
VMC MODULES ENGLISH|Exercise LEVEL - 2|49 Videos
PROBABILITY
VMC MODULES ENGLISH|Exercise NUMERICAL VALUE TYPE FOR JEE MAIN|15 Videos
PROBABILITY
VMC MODULES ENGLISH|Exercise JEE ADVANCED (ARCHIVE)|102 Videos
PERMUTATION & COMBINATION
VMC MODULES ENGLISH|Exercise JEE ARCHIVE|50 Videos
PROPERTIES OF TRIANGLE
VMC MODULES ENGLISH|Exercise JEE Advanced (Archive)|50 Videos

Similar Questions

Explore conceptually related problems

The probability that a teacher will give a surprise test during any class is 1/5. If a student is absent on two day what is the probability that he will miss atleast one test.

A dice is thrown twice. Find the probability of getting 3 at least one time.

A class has 20 girls and 16 boys. One student is selected at random. Find the probability that the student is a girl.

The probability to pass in an examination of mathematics for three students are 1/4,1/5,1/6 . Find the probability that at least two students will pass in this examination.

The probability that a student is not a swimmer is 1/5. Then find the probability that out of 5 students exactly 4 are swimmer.

The cumulative histrogram above shows the distribution of scores that 24 students received on an English test. If a students is selected at random, what is the probability that the student will have a score between 71 and 80?

Two thirds of eth students in a class are boys and the rest girls. It is known that eh probability of a girl getting a first class is 0.25 and that of a boy getting a first class is 0.28. find the probability that a student chosen at random will get first class marks in the subject.

Two thirds of the students in a class are boys and the rest girls. It is known that the probability of a girl getting a first class is 0.25 and that of a boy getting a first class is 0.28. find the probability that a student chosen at random will get first class marks in the subject.

The probability that a student will receive A, B, C or D grade or 0.40, 0.3, 0.1 and 0.10 respectively. Find the probability that a student will receive. i. B or C grade ii. at most C grade.

In answering a question on a multiple choice test, a student either knows the answer or guesses. Let 3/5 be the probability that he knows the answer and 2/5 be the probability that he guesses. Assuming that a student who guesses at the answer will be correct with probability 1/3 , what is the probability that the student knows the answer given that he answered it correctly

VMC MODULES ENGLISH-PROBABILITY-LEVEL - 1

A fair die is thrown 20 times. The probability that on the 10th throw,...
Text Solution
|
There is a five-volume dictionary among 50 books arranged on a shelf i...
Text Solution
|
The probability that a teacher will give an unannounced test during an...
Text Solution
|
There are 5 duplicate and 10 original items in an automonile shop and ...
Text Solution
|
Three letters are written to different persons , and the addresses on ...
Text Solution
|
about to only mathematics
Text Solution
|
The probability that the 13^(th) day of any randomly chosen month is a...
Text Solution
|
Three of six vertices of a regular hexagon are chosen at random. The ...
Text Solution
|
The probability that out of 10 person, all born in June, at least two ...
Text Solution
|
A is a set containing n elements, A subset P (may be void also) is sel...
Text Solution
|
A person draws 2 cards from a well shuffled pack of cards, the cards a...
Text Solution
|
Let A be a set consisting of n elements. The probability of selecting ...
Text Solution
|
Three numbers are chosen at random without replacement from {1, 2, 3, ...
Text Solution
|
The number of ordered pairs (m,n),m,n in{1,2,...,100} such that 7^m + ...
Text Solution
|
India play two matches each with West Indies and Australia. In any ...
Text Solution
|
Thirteen persons take their places at round table, show that it is fiv...
Text Solution
|
Find the probability that a leap year, selected at random, will con...
Text Solution
|
Let A= sets of all letter in the word MATHEMATICS and B= sets of all...
Text Solution
|
A husband and wife appear in an interview for two vacancies for the ...
Text Solution
|
An integer is chosen at random from the first two hundred positive in...
Text Solution
|