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2 days ago · This idea, first demonstrated by a company called Silicon Graphics in the late 1990s, is one of multiple methods that Cloudflare has up its sleeves for generating random numbers to secure information.
5 days ago · Linearity of expectation is the property that the expected value of the sum of random variables is equal to the sum of their individual expected values, regardless of whether they are independent. The expected value of a random variable is essentially a weighted average of possible outcomes.
4 days ago · Variant: The Random Monty Hall Problem. This result depends crucially on the fact that Monty was always guaranteed to open a door with a goat behind it, regardless of what door you picked initially. That is, P (E \mid H) = P (E \mid \text {not}H) P (E ∣ H) = P (E ∣ notH).
3 days ago · The Egyptian mathematicians exclusively used only unit fractions in their perception and did not seem to accept the idea of vulgar fraction, where the numerator is divided by denominator, as we do today.
5 days ago · In base 10, a fraction has a repeating decimal if and only if in lowest terms, its denominator has any prime factors besides 2 or 5, or in other words, cannot be expressed as 2 m 5 n, where m and n are non-negative integers.
6 days ago · Means (continuous data) Selection of a meta-analysis model, e.g. fixed effect or random effects meta-analysis. Examine sources of between-study heterogeneity, e.g. using subgroup analysis or meta-regression. Formal guidance for the conduct and reporting of meta-analyses is provided by the Cochrane Handbook .
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4 days ago · Rationalize the denominator of the surd, giving your answer in the simplest form.
