Respuesta :

shane257

Answer:

Step-by-step explanation:

remove parentheses by multiplying factors

use exponent rules to remove parentheses in terms with exponents

combine like terms by adding coefficients

combine the constants

exceloffcity

Answer:

Sampling variability is how much an estimate varies between samples.

Step-by-step explanation:

“Variability” is another name for range; Variability between samples indicates the range of values differs between samples. ... The variance (σ2) and standard deviation (σ) are common measures of variability

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