Solution-Find the standard deviation of the distribution

Find the standard deviation of the distribution

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Reference no: EM131622789

Ex. 1. If weekly wage of 10,000 workers in a factory follows normal distribution with a mean and s.d. Rs. 70 and Rs. 5 respectively, find the expected number of workers whose weekly wages are (i) between Rs. 66 and Rs. 72 (ii) less than Rs. 66 (iii) more than Rs. 72

[ Given that 1/√2Π ₀∫^Πe^_-t2_/2 dt = 0.1554 and 0.2881 according as z=0.4 and z=0.8 ]

Ex. 2. The mean of a normal distribution is 50 and 5% of values are greater than 60. Find the standard deviation of the distribution (Given that the area under normal curve between z=0 and z= 1.64 is 0.45)

Reference no: EM131622789

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Find the standard deviation of the distribution

Reference no: EM131622789

Reference no: EM131622789

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