OCR MEI S1 — Question 2

Exam BoardOCR MEI
ModuleS1 (Statistics 1)
TopicMeasures of Location and Spread
TypeConstruct stem-and-leaf then find median and quartiles

2 The mean daily maximum temperatures at a research station over a 12 -month period, measured to the nearest degree Celsius, are given below.
JanFebMarAprMayJunJulAugSepOctNovDec
8152529313134363426158
  1. Construct a sorted stem and leaf diagram to represent these data, taking stem values of \(0,10 , \ldots\).
  2. Write down the median of these data.
  3. The mean of these data is 24.3. Would the mean or the median be a better measure of central tendency of the data? Briefly explain your answer.