Stat 201 Exam 1 Solved 100% Correct
1st quartile - ANSWER-25th percentile
2nd quartile - ANSWER-50th percentile (median)
3rd quartile - ANSWER-75th percentile
categorical - ANSWER-Consists of values that represent categories (Anything that is
not a quantitative variable)
categorical data graphs - ANSWER-bar chart, pie chart, Pareto chart
conditional probabilities - ANSWER-P(A given B) = P(A and B) / P(B) keyword : "given"
conditional probabilities formula - ANSWER-# ways to get both event A and B / total
ways to get B (given)
continuous quantiive - ANSWER-measurements (time, distance weights, money,
temperature)
cumulative percentage - ANSWER-the sum of all the percentages of values less than
the upper limit in the bin
descriptive statistics - ANSWER-methods for summarizing collected data
discrete quantitative - ANSWER-counts ("the number of")
empirical rule - ANSWER-1. Approximately 68% of the values are within +1 standard
deviation from the mean
2. Approximately 95% of the values are within +2 standard deviations from the mean
3. All or nearly all (99.7%) of the values are within +3 standard deviations from the
mean
empirical rule 68% - ANSWER-u - 1o and u + 1o
empirical rule 95% - ANSWER-u - 2o and u + 2o
empirical rule 99.7% - ANSWER-u - 3o and u + 3o
five number summary - ANSWER-min, Q1, Q2, Q3, max
frequency - ANSWER-the number of values in the range
1st quartile - ANSWER-25th percentile
2nd quartile - ANSWER-50th percentile (median)
3rd quartile - ANSWER-75th percentile
categorical - ANSWER-Consists of values that represent categories (Anything that is
not a quantitative variable)
categorical data graphs - ANSWER-bar chart, pie chart, Pareto chart
conditional probabilities - ANSWER-P(A given B) = P(A and B) / P(B) keyword : "given"
conditional probabilities formula - ANSWER-# ways to get both event A and B / total
ways to get B (given)
continuous quantiive - ANSWER-measurements (time, distance weights, money,
temperature)
cumulative percentage - ANSWER-the sum of all the percentages of values less than
the upper limit in the bin
descriptive statistics - ANSWER-methods for summarizing collected data
discrete quantitative - ANSWER-counts ("the number of")
empirical rule - ANSWER-1. Approximately 68% of the values are within +1 standard
deviation from the mean
2. Approximately 95% of the values are within +2 standard deviations from the mean
3. All or nearly all (99.7%) of the values are within +3 standard deviations from the
mean
empirical rule 68% - ANSWER-u - 1o and u + 1o
empirical rule 95% - ANSWER-u - 2o and u + 2o
empirical rule 99.7% - ANSWER-u - 3o and u + 3o
five number summary - ANSWER-min, Q1, Q2, Q3, max
frequency - ANSWER-the number of values in the range
