llustration 13.26 Calculate the cost of living index. Item Quanțity used in given year Po Pa 1. Rice 2. Pulses 3. Oil 4. Clothing 5. Housing 6. Misc 30 quantals 36.kg. 24 kg 12 25 0.40 0.60 1.5 2.2 72 m 0.75 1.0 unit 20 p.m. 30 p.m. 10 g.m 15 p.m.

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Q: 5.5 7.2 7.3 6.3 8.1 6.8 7.0 7.0 6.8 6.5 7.0 6.3 7.9 9.0 8.6 8.7 7.8 9.7 7.4 7.7 9.7 8.0 7.7 11.6 11....

A: Solution: n1=27n2=20X= ∑Xn1=219.427=8.1259Y= ∑Yn2=172.120=8.605σ12= ∑(X-X)2n1=74.6718527=2.7656σ22=∑...

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A: When two dice are thrown, there are 6*6 = 36 outcomes.    

Q: Find the correct coefficient of correlation.

A: Here use correlation coefficient formula