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Vocab-- Sampling Distributions Flashcards | StudBud

Explore/Vocab-- Sampling Distributions

Vocab-- Sampling Distributions

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Questions 10

Answers

1
A parameter is a...
a random sample
number that describes a sample
a mean
number that describes the population
2
Large samples give.
larger spread than small samples
large spread
smaller spread than small samples
small spread
3
What kind of bias and variability does this graph have?
High variability & low bias
Low bias & low variability
High bias & high variability
Low variability & high bias
4
How large would a sample have to be to cut the standard deviation in half?
4x as large
3x as large
2x as large
5x as large
5
If the conditions for np≥1 and n(p-1)≥10 are met..
the sample is skewed left
the sample is biased
the sample is approximately normal
the sample is not normal
6
We usually want statistics with..
high bias and high variability
high bias and low variability
low bias and high variability
low bias and low variability
7
What 4 things describe sampling distributions?
sample, standard deviation, mean, spread
center, shape, spread, and outliers
center, shape, mean, and standard deviation
shape, outliers, spread, and sample
8
A statistic is unbiased if..
mean of sampling distribution NOT = to true parameter value
mean of sampling distribution = to sample value
the statistic has variability
mean of sampling distribution = to true parameter value
9
The Central Limit Theorem allows us to use normal probability to answer questions about..
standard deviations
sample proportions
sample distributions
sample means
10
If a sample is normally distributed than the sample size..
never matters
always matters
sometimes matters
does not matter