Statistical Inferences · CSEC Mathematics

11 past-paper questions on Statistical Inferences, part of STATISTICS, from every CSEC Mathematics paper on Quelpr.

1. 5(c)(ii)2 marks· CSEC Mathematics · 2003 (Specimen) · Paper 2Is it possible to use the information given to predict the price of bananas in the year 1981? Give a reason for your answer.
2. 5(a)(ii)1 mark· CSEC Mathematics · 2021 · Paper 2Damion reports that the median amount spent is $84. Briefly explain why Damion's report could be correct.
3. Q451 mark · multiple choice· CSEC Mathematics · May/June 2012 · Paper 1The pie-chart above shows the preference in drinks of a group of students. If 12 students prefer chocolate, then the TOTAL number of students is
4. Q441 mark · multiple choice· CSEC Mathematics · May/June 2016 · Paper 1Item 44 refers to the following diagram. The piechart above shows the preference in drinks of a group of students. Each student may select only one drink. If 12 students prefer chocolate, then the TOTAL number of…
5. 3(b)(ii)6 marks· Mathematics Q3 3(b)(ii)Only six scores are to be used. Which two scores may be omitted to leave the value of the median the same?
6. 6(d)1 mark· Mathematics Q6 6(d)Explain how the two facts about the population, (c) (i) and (c) (ii), are shown on your graph.
7. 6(v)2 marks· Mathematics Q6 6(v)Comment on how the sales in June compared with the sales in the previous five months.
8. 7(b)(ii)1 mark· Mathematics Q7 7(b)(ii)What assumption have you made in drawing your curve through the point (0,0)?
9. 7(c)1 mark· Mathematics Q7 7(c)Explain why the value of the mean obtained in (b)(ii) is only an estimate of the true value.
10. 7(d)(i)1 mark· Mathematics Q7 7(d)(i)Determine the number of students who threw the ball a distance recorded as 50 metres or more
11. 7(e)1 mark· Mathematics Q7 7(e)Give ONE reason why the bar chart is unsuitable for predicting the number of bananas produced in 2016.