Home
Class 12
MATHS
A player tosses two unbaised coins. He w...

A player tosses two unbaised coins. He wins Rs. 5 if two heads appear, Rs. 2 if one head appear and Rs. 1 if no head appear. Find the expected amount to win.

Text Solution

Verified by Experts

The correct Answer is:
2.5
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • PROBABILITY DISTRIBUTIONS

    SURA PUBLICATION|Exercise ADDITIONAL QUESTIONS - 5 MARKS|4 Videos

  • PROBABILITY DISTRIBUTIONS

    SURA PUBLICATION|Exercise ADDITIONAL QUESTIONS - 2 MARKS|4 Videos

  • ORDINARY DIFFERENTIAL EQUATIONS

    SURA PUBLICATION|Exercise ADDITIONAL QUESTIONS|24 Videos

  • THEORY OF EQUATIONS

    SURA PUBLICATION|Exercise 4 MARKS|5 Videos

Similar Questions

Explore conceptually related problems

A coin is toosed three times consider the following events. A:'No head appears', B: 'Exactly one head appears' and C: 'Atleast two heads appear'.

Two balls are chosen randomly from an urn containing 8 white and 4 black balls. Suppose that we win Rs 20 for each black ball selected and we lose Rs10 for each white ball selected. Find the expected winning amount and variance.

Knowledge Check

  • Consider a game where the player tosses a six sided fair die. If the face that comes up is 6, the player wins Rs. 36, otherwise he loses Rs. k^(2) , where k is the face that comes up k = {1, 2, 3, 4, 5}. The expected amount to win at this game in Rs. is

    A
    `19/6`
    B
    `-19/6`
    C
    `3/2`
    D
    `-3/2`

  • Consider a game where the player tosses a six-sided fair die. If the face that comes up is 6, the player wins Rs 36, otherwise he loses Rs k^(2) , where k is the face that comes up k={1,2,3,4,5} The expected amount to win at this game in Rs is

    A
    `(19)/(6)`
    B
    `-(19)/(6)`
    C
    `(3)/(2)`
    D
    `-(3)/(4)`

    • Similar Questions

    Explore conceptually related problems

    Two balls are chosen randomly from an urn containing 8 white and 4 black balls. Suppose that we win Rs 20 for each black ball selected and we lose Rs 10 for each white ball selected . Find the expected winning amout and variance.

    A coin is tossed three times. Event A: two heads appear Event B: last should be head Then identify whether events A and B are independent or not.

    A fair coin is tossed repeatedly. If tail appears on first four tosses, then find the probability of head appearing on fifth toss.

    A fair coin is tossed repeatedly. If tail appears on first four tosses, then the probability of head appearing on fifth toss equals

    A coin is tossed three times. Event A: two heads appear Event B: last should be head Then identify whether events Aa n dB are independent or dependent.

    A lottery with 600 tickets gives one prize of Rs. 200, four prizes of Rs. 100, and six prizes of Rs. 50. If the ticket costs is Rs. 2, find the expected winning amount of a ticket.

    Home
    Profile