755 prompts matching "Why the probabilities in a distribution must sum to one"
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Index equations reducing to a quadratic
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Evaluating index expressions without a calculator
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Reviewing all the laws of indices before a test
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Simplifying a surd by extracting square factors
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Simplifying the square root of a larger number
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Rationalising a denominator with a single surd
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Rationalising a denominator with a surd and integer
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Rationalising using the conjugate
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Rationalising a more complex conjugate denominator
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Estimating the value of a surd
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Comparing the size of two surds
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Simplifying a fraction with a surd numerator
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Surds in the quadratic formula
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Dividing surds using the quotient rule
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Rationalising a denominator with three surd terms
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Finding n(A union B) using the formula
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Disjoint sets and what they mean
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Using sets to test simple logical statements
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Interpreting neither-nor in a Venn diagram problem
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Finding the nth term of an arithmetic sequence
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