A bowler knocks down at least 6 pins 70 percent of the time. Out of 200 rolls, how many times can yo

Discussion in 'Calculator Requests' started by math_celebrity, May 4, 2021.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    A bowler knocks down at least 6 pins 70 percent of the time. Out of 200 rolls, how many times can you predict the bowler will knock down at least 6 pins?

    Expected Value of (knocking down at least 6 pins) = number of rolls * probability of knocking down at least 6 pins
    Expected Value of (knocking down at least 6 pins) = 200 * 0.7
    Expected Value of (knocking down at least 6 pins) = 140
     

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