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Formula sheet in which include probability, descriptive statistics and standardized test statistics
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Descriptive Statistics
𝑖
0
1
1
𝑦
𝑥
Probability
𝑃(𝐴 ∩ 𝐵)
𝑃(𝐵)
𝑥
𝑖
𝑖
Var(X) = σ
2
𝑖
𝑥
2
𝑖
If X has a binomial distribution with parameters n and p, then:
P(X = k) = (
𝑛
𝑘
)p
k
(1 – p)
n – k
𝑥
𝑥
𝑝̂
𝑝
̂
Standardized Test Statistic
𝑥−𝑥̅
𝜎
