Answer:
μ ≈ 2.33
σ ≈ 1.25
Step-by-step explanation:
Each person has equal probability of ⅓.
![\left[\begin{array}{cc}X&P(X)\\1&\frac{1}{3}\\2&\frac{1}{3}\\4&\frac{1}{3}\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7DX%26P%28X%29%5C%5C1%26%5Cfrac%7B1%7D%7B3%7D%5C%5C2%26%5Cfrac%7B1%7D%7B3%7D%5C%5C4%26%5Cfrac%7B1%7D%7B3%7D%5Cend%7Barray%7D%5Cright%5D)
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:
What eventually led to conflicts between settlers and American Indians in Virginia?
farmers destroying the soil with tobacco crops
farmers moving onto land close to the coast
indentured servants encroaching on settlers’ land
colonial traders charging too much for tobacco
Step-by-step explanation:
vWhat eventually led to conflicts between settlers and American Indians in Virginia?
farmers destroying the soil with tobacco crops
farmers moving onto land close to the coast
indentured servants encroaching on settlers’ land
colonial traders charging too much for tobacco
Answer:A that is what I think the answer is
