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rogress of answering is
The nine measurements that follow are furnace temperatures recorded on successive batches in a semiconductor manufacturing process:
920, 918, 922, 930, 915, 921,925, 931, 927.
Find the sample range and mean.
A. None of the others
B. 16 and 925.0
C. 16 and 923.2
D. 15 and 923.2
