data that are labels or names; no intrinsic order; can be numeric or non-numeric
Term 2 of 149
What is nominal data?
data that are strictly numerical and can be ordered by size
data that represent measurements on a continuous scale
data that are labels or names; no intrinsic order; can be numeric or non-numeric
data that can be ranked but have no specific numerical values
Term 3 of 149
What Excel function do you use to find the median?
=skew(array)
=MEDIAN(array)
=stdev.s(array)
e(x) = np
,Term 4 of 149
What type of data can only be numerical?
Observation
Data With Numerical Values
Categorical
Quantitative
Term 5 of 149
What is categorical data?
data that represent continuous measurements without categories
data that are only numeric and can be averaged
data that are grouped by categories; can be either numeric or non-numeric
data that are used exclusively for mathematical calculations
Term 6 of 149
What does the σ² symbol mean?
variance of a sample
bell shaped curve
variance of a population
sample mean
Term 7 of 149
How is a complement denoted?
an indicator of relative standard deviation
a subset of the population
a tabular summary of data for two variables
Aᶜ (A to the power of C)
,Term 8 of 149
What does a Z-Score of zero mean?
the observation is the mean
a subset of the population
characteristics of interest
the positive square root of the variance; uses the same unit as in the original data, so it is
more meaningful than variance
Term 9 of 149
What are the 4 properties of a binomial experiment?
an indicator of relative standard deviation
interval and ratio
a process of observation with an uncertain outcome, where a single repetition will
produce one and only one of the possible outcomes
1. Sequence of n independent trials
2. Two outcomes, success and failure
3. Probability of success ("p") DOES NOT change from trial to trial
4. Trials are independent
Term 10 of 149
What is interval data?
data that can only be classified into distinct categories
data that are strictly qualitative and cannot be quantified
numeric data for which the differences in order are meaningful; can be measured along
a continuum
data that have no numerical representation and are used for labeling
, Term 11 of 149
What is the formula for binomial variance?
Var(x) = np(1 - p)
E(x) = (a + b) / 2
Σ = sqrt(np[1 - p])
E(x) = μ =σxf(x)
Term 12 of 149
What is a quartile?
a subset of the population
dividing the data into four parts
a tabular summary of data showing the number of observations in each of several non-
overlapping categories or classes
collecting data for an entire population
Term 13 of 149
What Excel function do you use to find the standard deviation of a sample?
e(x) = np
=average(array)
=max(array)
=STDEV.S(array)
Term 14 of 149
What is the variance of a discrete variable?
the standard deviation of its probability distribution
the total number of observations
the difference between the highest and lowest values
the average of all data points
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