Question

9. Specimens of similarly treated alloy steel containing various percentages of
nickel are tested for toughness with the following results:
50
Toughness (arbitrary units) 47 52 52 54 56 58 59
Percentage of Nickel 2.7 2.7 2.8 2.8
2.8 2.8 2.9 3.2 3.2 3.3
60 60 62 64 65 66
3.4 3.5 3.5 3.6 3.7
3.6 3.7 3.8
Find the coefficient of correlation between 'toughness' as measured by the
test, and percentage content of Nickel' in the alloy steel.
(C.U., M. Com. '65; D.S.W., May '711​

Answer 1

Answer:

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Step-by-step explanation:

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