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1 . Determine if there is a relationship existing between income (x) and the expenditure (y) of a random sample of 11 families in a

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1 . Determine if there is a relationship existing between income (x) and the expenditure (y) of a random sample of 11 families in a particular urban area. The data gathered is shown in the table. Family No. Monthly Income (x) Monthly Expenditure (y) 5,600 4,700 3,875 3,680 7.200 6,500 4,278 3,500 2,695 2,588 5,678 5,668 5,325 4,256 3,054 3,054 4,487 4,074 6,952 6,638 4,000 3,500 2. The following are the scores on the NCAE and achievement grades of 15 students of a certain college. Determine the degree of relationship existing between the two variables. Family No. NCAE (x) Achievement Grade (y) 65 98 96 86 91 78 84 90 89 72 85 88 92 75 83 96 94 87 93 80 84 79 76 84 87 82 85 93 93

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