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Posted by on Thursday, April 4, 2013 at 9:32pm.

For n repeated independent trials, with constant probability of success p for all trials, find the probability of exactly x successes. Round your answer to four decimal places

n = 10, p = 1/7, x = 3

A. 0.1189

B. 0.1546

C. 0.1308

D. 0.1427

  • Math - , Thursday, April 4, 2013 at 9:35pm

    I believe I answered the question, just find the probability of

    7 failures ( a 6/7 chance each time)

    3 successes (a 1/7 chance each time)

    Then multiply.

  • Math - , Sunday, September 27, 2015 at 9:16pm

    B
    .1546

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