Estimation Techniques - Unit 7

C2 Proficiency · Listening Multiple Choice Interview · Ready for C2 Proficiency Workbook, Macmillan

You will hear part of a conversation about estimation techniques. For questions 1–5, choose the answer (A, B, C or D) which fits best according to what you hear.

Alex gave a number in answer to the interview question because

his initial response had been rejected.

he had conducted a simple BOTEC analysis.

it seemed like a reasonable estimate.

he was perplexed about the question's purpose.

Why does Marta conduct her own BOTEC?

to showcase her skill at mental arithmetic

to highlight the inaccuracy of Alex's estimate

to make a comparison with Alex's answer

to illustrate the importance of a step-by-step method

What aspect of Fermi problems do Alex and Marta agree on?

They are useful for making estimates without sufficient data.

Fermi Olympiads merely afford people an opportunity to have their egos boosted.

The Drake Equation is likely to produce a more accurate figure in the future.

The Drake Equation is valuable even if current estimates aren't especially useful.

Which estimate does Alex support with a rational argument?

the population of Paris

the number of daily customers for each petrol station

the average frequency of filling a car with petrol

the proportion of residents that make little use of petrol stations

What does Alex learn from the example of a sanity check?

the need to follow up in the case of a discrepancy

how a previously conducted BOTEC can reveal an apparent deception

the value of confirming an initial estimate with an accurate measurement

why it is important to establish maximum and minimum values

Available as a free printable PDF worksheet with an optional answer key.

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