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_________ can be used to compare two collections of data.

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When a die is thrown, the probability of getting a number less than 7 is _________.

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In Throwing a die the number of possible outcomes is _________.

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The representation of data with bars of uniform width is called _________.

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If the arithmetic mean of 8, 4, x, 6, 2, 7 is 5, then the value of x is _________.