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If ε = {whole numbers less than 50 but greater than 20} and X = {perfect squares}, Y = {factors of 12}, Z = {prime numbers}; find the following:a) X ∪ Yb) X ∩ Yc) X ′d) X′ ∩ Y ∩ Z |
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Answer» 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. |
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