15 coupons are numbered 1, 2, 3, ..., 15 respectively. 7 coupons are selected at random one at a time with replacement. The probability that the largest number appearing on a selected coupon is 9 is
maths
avatarAsked on December 26, 2019 by Dipankar Lakra

coupons are numbered respectively. coupons are selected at random one at a time with replacement. The probability that the largest number appearing on a selected coupon is is

A

B

C

D

Answer

Given: 15 coupons from 1 to 15. 7 coupons are selected with replacement
To find: the probability that the largest number appearing on a selected coupon is 9
Sol: According to the question, 
Favourable numbers possible is {1, 2, 3, 4, 5, 6, 7, 8, 9}
 Hence total possible ways of drawing 7 numbers with largest number being 9 =
Hence the probability that the largest number appearing on a selected coupon is 9 =

Answer ByavatarToppr
Prev Question
Next Question

Related Questions to study

There are 2 locks on the door and the keys are among the six different ones you carry in your pocket. In a hurry you dropped one somewhere.The probability that you can still open the door is

View Answer

A jar contains marbles, some green and others blue. If a marble is drawn at random from the jar, the probability that it is green is . Find the number of blue marbles in the jar.

View Answer

A five digit number is formed by the digits with no digit being repeated. The probability that the number is divisible by , is

View Answer

What is the probability of drawing a king and a queen consecutively from a deck of cards, without replacement.

View Answer

Two uniform dice marked to are thrown together. The probability that the score on the two dice is at least seven is

View Answer

 Six boys and girls sit in a row randomly. Find the probability that the six girls sit together.

View Answer

Three mangoes and three apples are in a box if two fruits are chosen at random, the probability that one is a mango and the other is an apple is 

View Answer

A father purchases dress for his three daughters. The dresses are of same color but of different size. The dress is kept in dark room. What is the probability that all the three will not choose their own dress ?

View Answer

In a hockey team there are defender,s offenders and goalee out of these, one player is to be selected randomly as a captain. Find the probability of the selection that-
1) The goalee will be selected
2) A defender will be selected

View Answer

Out of (2n+1) tickets consecutively numbered,three are drawn at random. The chance that the numbers on them are in A.P. is

View Answer

VIEW MORE

Revise with Concepts

Problems on Combinations or Selections

ExampleDefinitionsFormulaes
20,000+
Learning videos
8,000+
Fun stories
10,000+
Fundamental concepts
8,00,000+
Homework Questions