A game of chance consists of spinning an arrow which comes to rest pointing at one of the numbers from 1 to 8 and these are equally like outcomes. What is the probability that is will point at:
8 b) an odd number
c) a number greater than 2 d) a number less than 9
Answers
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Step-by-step explanation:
b) odd numbers- 3,5,7
No. Of outcomes - 3
Probability = 3/8
c) no. greater than 2- 3,4,5,6,7,8
No. Of outcomes =6
Probablility = 6/8 = 3/4
d) numbers less than 9 - 1,2,3,4,5,6,7,8
No. Of outcomes - 8
Probability = 8/8 = 1
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Answer:
Ans. Out of 8 numbers, an arrow can point any of the numbers in 8 ways.
Total number of favourable outcomes = 8
(i) Favourable number of outcomes = 1
Hence, P (arrow points at 8) =
(ii) Favourable number of outcomes = 4
Hence, P (arrow points at an odd number) =
(iii) Favourable number of outcomes = 6
Hence, P (arrow points at a number > 2) =
(iv) Favourable number of outcomes = 8
Hence, P (arrow points at a number < 9) = =1
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