A supermarket has recently introduced an online shopping service. The manager of

Question

A supermarket has recently introduced an online shopping service. The manager of online services has been as representative sample of 26 customers. The amount each of these customers s ked to monitor the online sales figures. The manager has selected.a pent (5) on goods ordered online has been noted and shown below 37 40 42 42 45 46 51 53 56 57 9 159 61 161 162 63 64 64 70 75 78 85 103 The outer fences for this data tassuming percentiles 0, 1 exclusive) are OA. 11.25-95.25 08-24-130 C-20.25-126.75 .0-130 OE. -21-127

Explanation / Answer

Q1=First quartile=42.75, Q3=third quartile=63.75

Inter quartile range=63.75-42.75=21=IQR

Lower outer fence=Q1-1.5IQR=42.75-1.5x21=11.25

Upper outer fence=Q3+1.5IQR=63.75+1.5x21=95.25

Option A 11.25-95.25

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