The answer would be A) -7a
1. expand
2. gather the terms
3. simplify.
Answer:
D. it is greater than 1.
Step-by-step explanation:
3/8 +7/8 = 1 2/8
Answer:
A≈138.53
Step-by-step explanation:
A=a^2+2a √a^2/4+h2
Answer:
AM sorry cant help
Step-by-step explanation:
The Empirical Rule states that, when the distribution is bell-shaped, around 95% of all observations will be within 2 standard deviations from the mean, which means from μ - 2σ to μ + 2σ.
The binomial distribution is a bell-shaped distribution with:
μ = np and
σ = √(np(1-p))
Therefore, 95% of the outcomes will be in the interval from np-2√(np(1-p)) and np+2√(np(1-p))
Any observation that lies outside this interval (which means greater than np+2√(np(1-p)) or less than np-2<span>√(np(1-p))</span> ) occurs less then 5% of the times and therefore can be considered "unusual".