1. What is themean mark obtained?

44 3 6340 76 89 7265

2.) What is the median mark obtained?

48 5633 7030 76 85 73

3.)

7 32 43 62 66 76 83 95

Providing the 25th percentile = 32, determine the Inter Quartile Range (IQR) for the above data set.

4.)

Q1 = 32

Q3 =83

IQR =51

Based on the above information, calculate the Inner Fence Upper Limit (IFUL) & Inner Fence Lower Limit (IFLL) and select from the options below and explain with calculations:

A. IFLL = -24, IFUL = 144

B. IFLL = -7, IFUL = 95

C. IFLL = 44.5, IFUL = 159.5

D. IFLL = 44.5, IFUL = 159.5

5.)

4 47 54 69 72 74 75 98

IFUL = 117

IFLL = 5

Based on the above data, is there an extreme value (outlier) present? Yes or No? explain with calculations.

6. Providing extreme valuesare found in a data set, which of the following statistics would you recommend to measureCentral Tendencyand Spreadofthe data? Pick the right answer and explain.

A. recommend the use ofmeanand interquartile range (IQR)because extreme value is found

B. recommend the use ofmedian and interquartile range (IQR)because extreme value is found

C. recommend the use ofmeanandstandard deviationbecause extreme value is found

D. recommend the use ofmedian andstandard deviationbecause extreme value is found