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18 April, 21:50

A spinner has the numbers 1 to 4 on it.

Probability of spinning 4 is 0.1

Probability of spinning 1 is 0.6

Probability of spinning 2 is the same as 3.

What is the probability of spinning a number 3?

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Answers (1)
  1. 18 April, 22:16
    0
    Hello,

    P (1) + P (2) + P (3) + P (4) = 0.6+2P (2) + 0.1=1

    ==>2P (2) = 1-0.6-0.1

    ==>2P (2) = 0.3

    P (2) = P (3) = 0.15
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