Draw Inferences From Random Samples
Middle School Math · Flashcards · Recall
MIDDLE SCHOOL MATH · FLASHCARDS
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QUESTION
What is a simulation in the context of sampling?
QUESTION
What is the sample proportion used for when estimating a population proportion?
QUESTION
What is the formula for the mean of a sample with values
x
1
,
x
2
,
…
,
x
n
x_1, x_2, \dots, x_n
x
1
,
x
2
,
…
,
x
n
?
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ANSWER
x
ˉ
=
x
1
+
x
2
+
⋯
+
x
n
n
\bar{x}=\frac{x_1+x_2+\cdots+x_n}{n}
x
ˉ
=
n
x
1
+
x
2
+
⋯
+
x
n
. Add all values and divide by count
n
n
n
.
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