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Two dice are trown simultaneously 525 times.each time the sum of two numbers appearing on their is noted and recorded as given in folowing table

27.Two dice are thrown simultaneously 525 times.Each time the sum of two numbers appearing on their tops is noted and recorded

as given in the following table

Sum | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | Total |

Frequency | 24 | 25 | 62 | 45 | 42 | 70 | 70 | 63 | 46 | 28 | 50 | 525 |

If the dice are thrown once more, what is the probability of getting a sum

i)of 9

ii)less than or equal to 6

iii) which is a multiple of 4

iv) which is a perfect square

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