quiz1sol[1] - Statistics 231 MARK SCHEME Please mark in RED...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Statistics 231 MARK SCHEME Please mark in RED INK and give a brief indication to the student of why you have taken off marks when you do. The solutions are in BOLD, everything else was on the question sheet. Please put your initials on top of each solution you mark so that we can trace back if the student has questions. Please pay particular attention to “fill in the blank” questions. Answers other than those given may be acceptable and if it makes sense you should give the mark. If in doubt ask. 1. [0.5 marks for each part] In the sentences below, fill in the blanks using either terminology from the course or information from the description of the study and the plots in Figure ?? . (a) The median value of Mark 1 in Section 1 is approximately 70% . (b) Since the Professors are interested in the question ‘does downloading the broadcast lecture improve the students understanding?’, this problem has a causative aspect. (c) A student in Section 1 is a unit of the study and their mark in STAT 230 is a variate . It has an ordinal data-type because it can be ordered. (d) From Fig. ?? (a) we see that there is a positive OR linear OR strong association between the variates Mark 1 and the STAT 230 mark. (e) There are
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 3

quiz1sol[1] - Statistics 231 MARK SCHEME Please mark in RED...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online