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Case ID# SEX Mathematical Skills (X) X2 #1 2 34 1,156 #2 2 41 1,681 #3 2 40 1,600 #4 2 36 1,296 #5 2

Case ID# SEX Mathematical Skills (X) X2 #1 2 34 1,156 #2 2 41 1,681 #3 2 40 1,600 #4 2 36 1,296 #5 2 25 625 #6 2 27 729 #7 2 38 1,444 #8 2 28 784 #9 2 29 841 #10 2 44 1,936 Subtotal Sum x=342 Sum x2 = 12,092 Calculate the mean of MATHEMATICAL SKILLS scores for females

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