Question

Express the equation x/3+y/3=1/6 in the form of ax+by+c=0 and write the values of a, b, c
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Answer 1

Answer:

Employment 11 14 17 Total 1 18 56 89 163 0 13 16 8 37 Total 31 72 97 200 What is the variance of employment? Give your answer to two decimal places.