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A binomial random variable has mean 8 and variance 4.8… | StemPy Lab
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A binomial random variable has mean 8 and variance 4.8. Which pair of values of n and p fits?
Mathematics
Medium
High School (11–12)
Statistics and Probability › Random Variables and Probability Distributions
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Created by
StemPy Lab
A binomial random variable has mean
8
8
8
and variance
4.8
4.8
4.8
. Which pair of values of
n
n
n
and
p
p
p
fits?
n
=
16
n = 16
n
=
16
,
p
=
0.5
p = 0.5
p
=
0.5
n
=
10
n = 10
n
=
10
,
p
=
0.8
p = 0.8
p
=
0.8
n
=
20
n = 20
n
=
20
,
p
=
0.4
p = 0.4
p
=
0.4
n
=
40
n = 40
n
=
40
,
p
=
0.2
p = 0.2
p
=
0.2
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