Example 4 The regression cquation of two variables are 3Y- 2X - 10 0 and 2Y - X - 50 = 0. Find coefficient of correlation.

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Q: (f) P(-1.45 S Z) (g) P(-1.90 <Z S 2.00) (h) P(1.66 < Z S 2.50)

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Q: 61-70 51 - 60 7. 41 - 50 8. 31 - 40 11 21-30 9. 11-20 1- 10 2.

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