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17 August, 10:16

The probability of a spinner stopping on 5 is 1/9. the probability of the spinner stopping on 6 is 4/9. what is the probability of the spinner stopping on 5 or 6?

a. 4/9

b. 4/81

c. 5/9

d. 5/18

+5
Answers (2)
  1. 17 August, 10:20
    0
    The events 'stop on 5' and 'stop on 6' are mutually exclusive. Therefore we add the probabilities of each event to find P (5 or 6):

    P (5 or 6) = 1/9 + 4/9 = 5/9.

    The correct answer is c.
  2. 17 August, 10:27
    0
    1/9 + 4/9 = 5/9 ... answer C
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