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Experimental Probability

Question 37i ...

Question

Question 37(i)
A child's game has 8 triangles of which 3 are blue and rest are red, and 10 squares of which 6 are blue and rest are red. One piece is lost at random. Find the probability that it is a triangle?

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Solution

Total number of figures
n(S) = 8 triangles + 10 squares = 18

P (lost piece is a triangle) $= \frac{8}{18} = \frac{4}{9}$

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Q. Question 37(iv)
A child's game has 8 triangles of which 3 are blue and rest are red, and 10 squares of which 6 are blue and rest are red. One piece is lost at random. Find the probability that it is a triangle of red colour?

Q. Question 37(iii)
A child's game has 8 triangles of which 3 are blue and rest are red, and 10 squares of which 6 are blue and rest are red. One piece is lost at random. Find the probability that it is a square of blue colour?

Q. Question 37(ii)
A child's game has 8 triangles of which 3 are blue and rest are red, and 10 squares of which 6 are blue and rest are red. One piece is lost at random. Find the probability that it is a square?

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triangles of which

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are blue and rest are green,

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rectangles of which

3

are green and rest are blue, and

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rhombuses of which

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are blue rest are green. One piece is lost a random. Find the probability that it is a triangle.

Q. In a bag there are

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identical cards with figure of circle or square on them. There are

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circles, of which

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are blue and rest are green and

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squares of which

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are blue and rest are green. One card is drawn from the bag at random. Find the probability that it has the figure of (i) square (ii) green colour (iii) blue circle and (iv) green square

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