edictions based on the data.
asure in a study.
in which we are interested.
n for whom we have (or plan to have) data
the population.
sample taken from the population.
mbers form a set of separate numbers such as 0,1,2,3…
values form an interval (height or temperature)
ble values for a variable with the number of observations for each value.
nusual date (outliers) and concentrated points since the number of dots represent the
frequency of occurrence of that value.
on is larger than the mean, then the deviation is positive whereas if it’s smaller than the mean, the deviation is negative.
HH
 .3025
HT
 .2467
TH
 .2475
TT
 .2025
H
Atleast one = use complement formula
A or B = P(A) + P(B) – P(AandB)
H
T
Find area that lies between A and B.
P ( A < z < B)
P ( z < B) – P ( z > A)
(table a) – (table a)
= Answer!
H
P = population proportion
p = sample proportion
se = standard error
n = sample size
s = sample standard deviation
A confidence interval for a parameter is
constructed by adding and subtracting a
margin of error.
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 Spring '08
 Staff
 Math, Statistics, Normal Distribution, Standard Deviation, Probability theory, Sample Proportion Mean

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