M^4-100 in factor form
2 answers:
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Answer:
μ ≈ 2.33
σ ≈ 1.25
Step-by-step explanation:
Each person has equal probability of ⅓.
The mean is the expected value:
μ = E(X) = ∑ X P(X)
μ = (1) (⅓) + (2) (⅓) + (4) (⅓)
μ = ⁷/₃
The standard deviation is:
σ² = ∑ (X−μ)² P(X)
σ² = (1 − ⁷/₃)² (⅓) + (2 − ⁷/₃)² (⅓) + (4 − ⁷/₃)² (⅓)
σ² = ¹⁴/₉
σ ≈ 1.25
Answer:
Step-by-step explanation:
∠IHG = ∠IHW + ∠WHG
36x + 2 = 16x - 3 + 65
36x + 2 = 16x + 62
Subtract 2 from both sides
36x = 16x + 62 - 2
36x = 16x + 60 {Subtract 16x from both sides}
36x - 16x = 60
20x = 60 {Divide both sides by 20}
x = 60/20
x = 3
