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1 September, 21:35

There are seven black socks, eight blue socks, 10 white socks, and five patterned socks in the drawer. What is the probability of pulling a blue sock, replacing it, and then drawing a patterned sock out of the drawer?

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Answers (2)
  1. 1 September, 22:01
    0
    2/45

    Step-by-step explanation:

    Total socks:

    7 + 8 + 10 + 5 = 30

    P (blue) * P (patterned)

    8/30 * 5/30

    4/15 * 1/6

    2/45
  2. 1 September, 22:01
    0
    2/45

    Step-by-step explanation:

    The total number of socks is 7+8+10 + 5

    30

    P (blue) = number of blue socks / total

    = 8/30 = 4/15

    Then we replace it so we have the same number of socks

    P (patterned) = number of patterned socks / total

    = 5/30 = 1/6

    P (blue, replace/patterned) = 4/15*1/6

    =2/45
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