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Re: International Baccalaureate Maths Marathon If I do that the derivative becomes f'(x)=3x^2+2px+q \geq 0

Re: International Baccalaureate Maths Marathon I think there is a typo in this question for Q 13 (b) . I cant get why its p^2 \leq 3pq

Re: HSC 2017 Maths Marathon

Re: University Statistics Discussion Marathon Statistical validity refers to whether a statistical study is able to draw conclusions that are in agreement with statistical and scientific laws. This means if a conclusion is drawn from a given data set after experimentation, it is said to be...

Re: HSC 2017 Maths Marathon

Re: HSC 2017 Maths Marathon

Re: HSC 2017 Maths Marathon

Re: HSC 2017 Maths Marathon OK I got nothing else to do on a Friday night I am going to have an honest go at this question.

Re: HSC 2017 Maths Marathon

Re: University Statistics Discussion Marathon Id rule out A straight up as well, which would love me down to B or C.

Re: University Statistics Discussion Marathon Id rule out D straight away in that question. This from Wikipedia: "In statistics, self-selection bias arises in any situation in which individuals select themselves into a group, causing a biased sample with nonprobability sampling. "

Re: University Statistics Discussion Marathon A national TV poll is run asking viewers to ring in regarding whether they think the head of the Australian Bureau of Statistics should be sacked over the problems with the census. 500,000 people ring in, with 83% of respondents claiming he should...

Global Pricing- same price to customers around the world for delivery of parts and services. (From Wikipedia) As an example I think of the price if a Big Mac. Don't think the price fluctuates that much if you go around the world. (if it does it varies slightly)

Q6.A global business has adopted a strategy which aims to lower the average cost of its product by increasing output. What is this strategy called? (A) Outsourcing (B) Global pricing (C) Global sourcing (D) Economies of scale Again I won't look at a book or Google. Thinking outsourcing is when...

Q5 2016 HSC 5 An employee is treated unfairly because she is pregnant. What legislation prohibits this behaviour? (A) Trade Practices Act 1974 (Cth) (B) Affirmative Action (Equal Employment Opportunity for Women) Act 1986 (Cth) (C) Sex Discrimination Act 1984 (Cth) (D) Competition and Consumer...

Have run a business before and can understand why decisions like this are important. Important to know these terms when speaking to banks.

Re: University Statistics Discussion Marathon Based on those diagrams, the answer should be A. Left skewed.

Re: University Statistics Discussion Marathon Q1. If we have a data set where the median is significantly greater than the mean, which of the following is likely to be true? A. The data is left skewed B. There has been an error in data input C. Categorical data is being treated as numeric data...

Q4. 2016 Paper 4 Solvency is the ability of a business to (A) maximise its profits. (B) increase its market share. (C) meet its long-term financial commitments. (D) meet its short-term financial commitments. Not going to use a dictionary here or Google Search. From my time studying a bit of...

Thanks