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A game of chance consists of spinning an...

A game of chance consists of spinning an arrow which comes to rest pointing at one of the numbers 1, 2, 3, 4, 5, 6, 7, 8 and these are equally likely outcomes. What is the probability that it will point at 8?

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A game of chance consists of spinning an arrow which comes to rest pointing at one of the numbers 1, 2, 3, 4, 5, 6, 7, 8 (See figure), and these are equally likely outcomes. What is the probability that it will point at 8? (ii) an odd number? (iii) a number less than 9? (iv) a number greater than 2?

M and E are two equally strong football teams. what is the probability that M beats E in exactly 5 games out of 8.

Knowledge Check

  • If the points P (1,2,3), Q(4,5,6) and R(7,8,9) are collinear then Q divides PR in the ratios of -

    A
    `2:1`
    B
    `1:2`
    C
    `1:1`
    D
    `1:3`

  • The coordinates of the point which divides the join of the points (3,5,-7) and (-2, 1, 8) in the ratio 3:2 are-

    A
    `0 , (13)/(5), 2 `
    B
    `(2,0, -(15)/(2))`
    C
    `(-2 , (14)/(5) , 0)`
    D
    `(0 ,2 , (13)/(5))`

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