The number of incorrectly transferred calls made per month islisted below for a sample of 8 different months:
13 28 39 19 43 28 38 49
2.1 Calculate the mean number of incorrectly transferred calls madeper month. Contextually interpret your answer. (3)
2.2 Calculate the median number of incorrectly transferred callsmade per month. Contextually Interpret your answer. (3)
2.3 State the modal number of incorrectly transferred calls madeper month. Contextually interpret your answer. (2)
2.4 Calculate the standard deviation for the number of incorrectlytransferred calls made. (4)
2.5 Calculate Pearson’s median skewness coefficient for the numberof incorrectly transferred calls made. Contextually interpret youranswer. (3)
2.6 Which measure of central location would you use in yourreporting – the mean, median or mode? Motivate your answer. (2)
