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Let Q₁ be the sample mean and Qβ‚‚ the sample standard deviation of the numbers listed below.
0.8, 9.66, 4.17, 2.19, 12.03, 19.87, βˆ’2.49, 14.23, 10.64, βˆ’6.56, 1.19, 10.63, 8.92, 9.14, 18.33,βˆ’6.84, 10.57, βˆ’3.03, 12.26, 12.04
Let Q = ln(3 + |Q₁| + 2|Qβ‚‚|). Then T = 5 sinΒ²(100Q) satisfies:β€”

(A) 0 ≀ T < 1.
(B) 1 ≀ T < 2.
(C) 2 ≀ T < 3.
(D) 3 ≀ T < 4.
(E) 4 ≀ T ≀ 5


Sagot :

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