Expected time and the standard deviation

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Reference no: EM13974256

Problem:

A Small renovation of a Hard Rock Café gift shop has six activities (in hours). For the following estimates of a, m, and b, calculates the expected time and the standard deviation of each activity:

Activity	a	m	B
A	11	15	19
B	27	31	41
C	18	18	18
D	8	13	19
E	17	18	20
F	16	19	22

Reference no: EM13974256

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