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QLDMath MethodsQuick questions

Unit 3: Further calculus and statistics

Quick questions on The binomial distribution (QCE Mathematical Methods Unit 3)

2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is wrong direction for PP ?
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It is 1−P(X≤k−1)1 - P(X \leq k - 1), not 1−P(X≤k)1 - P(X \leq k). The boundary value kk belongs in the "at least" event.
What is wrong CAS syntax?
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Different calculators use slightly different function names (binomPdf, binomialPdf, etc.) and argument orders. Practise the exact syntax on your model before the IA2.

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