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alyaa4life

  • 3 years ago

in how many ways can a person answer 5 true or false questions?

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  1. kaushikpselvam
    • 3 years ago
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    each question can be answered in 2 ways ie 2C1. there are 5 questions. so the no of ways is 2*2*2*2*2=32 ways

  2. alyaa4life
    • 3 years ago
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    thhanks!!! but how about in how many ways the exam be completed if a penalty is imposed for each incorrect answer, so that a person may leave some questions unanswered?

  3. UnkleRhaukus
    • 3 years ago
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    so now there are three different ways to answer; true , false or blank

  4. UnkleRhaukus
    • 3 years ago
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    when there were only two ways to answer there were \(2^5\) ways now there are three ways the are \(3^5\) ways

  5. alyaa4life
    • 3 years ago
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    awesome! thank you very much!!!! :)

  6. alyaa4life
    • 3 years ago
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    a customer using an automatic teller machine (atm) must enter a 4- digit pin number in order to gain access to his account. if repitition of the same four digits is not allowed.(eg 3333) how many possible combinations are there?

  7. UnkleRhaukus
    • 3 years ago
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    do you know to to find how many combinations possible , if repetition was allowed?

  8. alyaa4life
    • 3 years ago
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    im not sure, im sucks at this :(

  9. alyaa4life
    • 3 years ago
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    how many 4 digits number can be formed with 1, 2,3,6,7,8 if each digit is used most at once? how many of these smaller than 600? ans( 360, 60)

  10. UnkleRhaukus
    • 3 years ago
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    how many combinations can a digit be?

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