Parameters for a Binomial Distribution
AP Statistics · Flashcards · Application
AP STATISTICS · FLASHCARDS
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QUESTION
Calculate
P
(
X
=
0
)
P(X=0)
P
(
X
=
0
)
for
n
=
3
n=3
n
=
3
and
p
=
0.7
p=0.7
p
=
0.7
using the binomial probability formula.
QUESTION
If
n
=
5
n=5
n
=
5
and
p
=
0.2
p=0.2
p
=
0.2
, what is the probability of exactly 1 success?
QUESTION
If
p
=
0.5
p=0.5
p
=
0.5
and
n
=
8
n=8
n
=
8
, find the probability of exactly 4 successes.
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ANSWER
P
(
X
=
4
)
=
0.2734
P(X=4) = 0.2734
P
(
X
=
4
)
=
0.2734
. Using
(
8
4
)
(
0.5
)
8
=
70
×
1
256
\binom{8}{4}(0.5)^8 = 70 \times \frac{1}{256}
(
4
8
)
(
0.5
)
8
=
70
×
256
1
.
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