STATISTICS EXAM 1 REVIEW WITH ALL CORRECT &
100% VERIFIED ANSWERS|LATEST UPDATE|ALREADY
GRADED A+
Descriptive Statistics ✔Correct Answer-collection, organization, presentation, and summary of data
Inferential Statistics ✔Correct Answer-generalizing from a sample to a population, drawing
conclusions, and making decisions
Categorical/Qualitative Data ✔Correct Answer-consists of values that can be expressed in words
may be coded arbitrarily with the help of numbers, but have categorical meaning
Numerical/Quantitative Data ✔Correct Answer-arises from counting, measuring, or some
mathematical operation
Discrete Data ✔Correct Answer-consists of distinct values
Continuous Data ✔Correct Answer-can have any value in an interval
Ordinal Data ✔Correct Answer-numbers depict category
have order or rank
differences between values are not meaningful
Ratio Data ✔Correct Answer-not categorical
numbers have rank
differences between values are meaningful
ratios are meaningful too due to the presence of meaningful zeros
Nominal ✔Correct Answer-Numbers depict category only
no order or rank
Manufacture of Car ✔Correct Answer-Categorical
College Major ✔Correct Answer-Categorical
Number of Credits ✔Correct Answer-Discrete
Length of Tv Commerical ✔Correct Answer-Continuous
Number of Peanuts in a can ✔Correct Answer-Discrete
Occupation of mortgage applicant ✔Correct Answer-Categorical
Flight time from London to Chicago ✔Correct Answer-Continuous
Interval Data ✔Correct Answer-not categorical
numbers have rank
differences between values or intervals are meaningful
, ratios are not meaningful because there is no meaningful zero
Number of employees in Walmart ✔Correct Answer-ratio
Number of merchandise returns on random Monday at Walmart ✔Correct Answer-ratio
Temperature of ice cream in a cooler ✔Correct Answer-interval
Name of cashier at register 3 in Walmart ✔Correct Answer-nominal
Observation ✔Correct Answer-a single member of a collection of items, each row corresponds to
an observation
Variable ✔Correct Answer-a characteristic of the subject
data set ✔Correct Answer-consists of all values of all the variables for all the observations we are
observing
Bivariate ✔Correct Answer-only 2 variables
Univariate ✔Correct Answer-only 1 variable
Multivariate ✔Correct Answer-more than 2 variables
Cross- Sectional ✔Correct Answer-different units at the same point of time
Time-Series ✔Correct Answer-one unit at different points of time
Random Sampling Methods ✔Correct Answer-important to make valid statistical references
Population ✔Correct Answer-all the items we are interested in
Sample ✔Correct Answer-a subset of the population that we analyze
Parameter ✔Correct Answer-a population characteristic
Statistic ✔Correct Answer-a numerical value calculated from the sample
Average length of all videos on Netflix ✔Correct Answer-parameter
Proportion of foreign Netflix films ✔Correct Answer-parameter
Proportion of documentaries in random sample of 60 videos ✔Correct Answer-statistic
Average length of 10 movies ✔Correct Answer-statistic
Bias ✔Correct Answer-a tendency to over or underestimate a population parameter of interest
Simple Random Sampling ✔Correct Answer-every item in the population has the
same chance of being chosen
100% VERIFIED ANSWERS|LATEST UPDATE|ALREADY
GRADED A+
Descriptive Statistics ✔Correct Answer-collection, organization, presentation, and summary of data
Inferential Statistics ✔Correct Answer-generalizing from a sample to a population, drawing
conclusions, and making decisions
Categorical/Qualitative Data ✔Correct Answer-consists of values that can be expressed in words
may be coded arbitrarily with the help of numbers, but have categorical meaning
Numerical/Quantitative Data ✔Correct Answer-arises from counting, measuring, or some
mathematical operation
Discrete Data ✔Correct Answer-consists of distinct values
Continuous Data ✔Correct Answer-can have any value in an interval
Ordinal Data ✔Correct Answer-numbers depict category
have order or rank
differences between values are not meaningful
Ratio Data ✔Correct Answer-not categorical
numbers have rank
differences between values are meaningful
ratios are meaningful too due to the presence of meaningful zeros
Nominal ✔Correct Answer-Numbers depict category only
no order or rank
Manufacture of Car ✔Correct Answer-Categorical
College Major ✔Correct Answer-Categorical
Number of Credits ✔Correct Answer-Discrete
Length of Tv Commerical ✔Correct Answer-Continuous
Number of Peanuts in a can ✔Correct Answer-Discrete
Occupation of mortgage applicant ✔Correct Answer-Categorical
Flight time from London to Chicago ✔Correct Answer-Continuous
Interval Data ✔Correct Answer-not categorical
numbers have rank
differences between values or intervals are meaningful
, ratios are not meaningful because there is no meaningful zero
Number of employees in Walmart ✔Correct Answer-ratio
Number of merchandise returns on random Monday at Walmart ✔Correct Answer-ratio
Temperature of ice cream in a cooler ✔Correct Answer-interval
Name of cashier at register 3 in Walmart ✔Correct Answer-nominal
Observation ✔Correct Answer-a single member of a collection of items, each row corresponds to
an observation
Variable ✔Correct Answer-a characteristic of the subject
data set ✔Correct Answer-consists of all values of all the variables for all the observations we are
observing
Bivariate ✔Correct Answer-only 2 variables
Univariate ✔Correct Answer-only 1 variable
Multivariate ✔Correct Answer-more than 2 variables
Cross- Sectional ✔Correct Answer-different units at the same point of time
Time-Series ✔Correct Answer-one unit at different points of time
Random Sampling Methods ✔Correct Answer-important to make valid statistical references
Population ✔Correct Answer-all the items we are interested in
Sample ✔Correct Answer-a subset of the population that we analyze
Parameter ✔Correct Answer-a population characteristic
Statistic ✔Correct Answer-a numerical value calculated from the sample
Average length of all videos on Netflix ✔Correct Answer-parameter
Proportion of foreign Netflix films ✔Correct Answer-parameter
Proportion of documentaries in random sample of 60 videos ✔Correct Answer-statistic
Average length of 10 movies ✔Correct Answer-statistic
Bias ✔Correct Answer-a tendency to over or underestimate a population parameter of interest
Simple Random Sampling ✔Correct Answer-every item in the population has the
same chance of being chosen
