In the Binomial Setting, p = the

probability of success for each trial

Which is not a requirement of a binomial probability distribution?

The probability must be greater or equal to 0.50

studbud

Binomial Probability 9ST0

31 termsStudBud Administration12 plays

Binomial Probability Calculations for AS / A Level Statistics Thanks to CmichSILeaders and nadiasuchen for lots of the questions. OSFC Pearson Edexcel 9ST0

Flashcards31 cardsFPractice quizPHost liveL

Questions 31

Answers

1
n=10, and p=0.4, what is P(X>3)?
0.21499
0.6177
0.36689
0.8327
2
Calculators
0.201
0.938
0.0635
0.131
3
In the Binomial Setting, p = the
probability of failure for each trial
probability of success for each trial
Sample Proportion
Population Proportion
4
Use the formulae
E(x) = 20 and S.D = 4.08
E(x) = 60 and S.D = 1
E(x) = 20 and S.D = 1/6
E(x) = 20 and S.D = 16.67
5
The Binomial Standard Deviation equals
\sqrt{np\left(1+p\right)}
\frac{\sqrt{p\left(1-p\right)}}{n}
\sqrt{np\left(1-p\right)}
np
6
n=10, and p=0.4, what is P(3≤X≤8)?
0.6160
0.8310
0.6160
0.9983
7
Write using only ≤: X<4
X≤26
X≤4
X≤3
X≤5
8
n=10, and p=0.4, what is the expected value?
4
40
10
25
9
n=10, and p=0.4, what is P(X≤8)
0.9983
0.9998
0.00167
0.4527
10
Calculator
0.172
0.3
0.333
0.828
11
Know your formulae!
2.25
3
1.5
9
12
Binomial distributions use what type of data?
only True and False
Continuous
Tree diagrams
Discrete
13
Which probability notation represents "at least 2"?
P(X ≥ 2)
P(X< 2)
P(X= 2)
P(X≤ 2)
14
n=10, and p=0.4, what is P(3<X≤8)?
0.3652
0.6177
0.6160
0.8310
15
Calculator
30.2%
29.1%
0.291%
0.44%
16
Which is not a requirement of a binomial probability distribution?
The probability must be greater or equal to 0.50
The trials must be independent
The probabilities must remain consistent
The experiment must have a fixed number of trials
17
n=10, and p=0.4, what is the standard deviation?
1.5491
.4898
2.4
2
18
1. X ~ B(8, 0.4) P(X= 0) = ?
0.0167
0.0166
0.0168
0.0169
19
In the Binomial Setting, n = the...
number of trials
number of trials until success
sample size
number of successes
20
n=10 and p=0.4, what is P(X=3)
0.38228
0.16729
0.8310
0.21499
21
1. X ~ B(7,1/6) P(X = 3) = ?
0.0781
0.0156
0.156
0.781
22
Calculator question!
0.382
0.215
0.0386
0.119
23
Calculator
0.0
0.11
0.125
0.179
24
Find the probability
3
5
2
4
25
The probability that X is exactly 4, P(X = 4), relates to which function on your calculator?
Pd
Addition
Cd
Inverse
26
Find the Probability
1
.13
.166
.0166
27
Know your formulae!
5160
516
2064
206
28
In Binomial distribution, what does np find?
Nothing in particular
mean / expected value
standard deviation
variance
29
1. X ~ B(4,2/3) P(X = 2) = ?
0.2962
0.2963
0.3951
0.3950
30
n=10, and p=0.4, what is P(X<3)
0.38228
0.9983
0.61777
0.16729
31
Calculator
0.22456
0.14453
0.85546
0.10937

Binomial Probability 9ST0 Flashcards | StudBud