Jennifer is playing cards with her bestie when she draws a card from a pack of 25 cards numbered fro

Discussion in 'Calculator Requests' started by math_celebrity, Oct 15, 2020.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    Jennifer is playing cards with her bestie when she draws a card from a pack of 25 cards numbered from 1 to 25. What is the probability of drawing a number that is square?

    The squares from 1 - 25 less than or equal to 25 are as follows:
    1. 1^2 = 1
    2. 2^2 = 4
    3. 3^2 = 9
    4. 4^2 = 16
    5. 5^2 = 25
    So the following 5 cards are squares:
    {1, 4, 9, 16, 25}

    Therefore, our probability of drawing a square is:
    P(square) = Number of Squares / Number of Cards
    P(square) = 5/25

    This fraction can be simplified. So we type in 5/25 into our search engine, choose simplify, and we get:
    P(square) = 1/5
     

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