Find the value of a for p(-a ≤ z ≤a)= 0.90,0.975 9:37 ✔

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A: Given: x y 0.87 1 0.499 2 0.308 3 0.198 5 0.143 7 0.123 8 0.083 12 0.069 14…

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Q: 4-P (X10 a) = 0.90 then a = 5. If X~ N (30, o²), if n = 10, s² = 5 then p (X <32) is

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A: Mean, x̄= ΣXi/n Here sample size is n= 24 Mean x̄= 499/24 = 20.79167   Standard deviation=…

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A: Mean, x̄= ΣXi/n  Here sample size is n= 24 x̄= 499/24  =20.79167   Kurtosis= m4/m22 m4= Σ(Xi-x̄)4/n…

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