Intro. to Statistics - Exam #1 Study Guide ACTUAL UPDATED Questions and
CORRECT Answers
Terms in this set (35)
Data Collections of observations, such as measurements, genders, or survey responses
Population The complete collection of all measurements or data that are being considered
Sample A sub-collection of members selected from a population
Continuous Data Result from infinitely many possible quantitative values where the collection of
values is not countable
Ex. The weight of everyone in the classroom.
Discrete Data Result from when the data values are quantitative and the number of values is
finite or countable
Ex. Number of people with brown eyes in a classroom.
Frequency Distribution Shows how data is partitioned among several categories (or classes) by listing the
categories along with the number (frequency) of data values in each
class/category
Frequency The number of values that fall into the class/category in question
Relative Frequency The frequency of the particular class/category divided by the total number of
data values for a percentage value
Histogram A graph consisting of bars of equal width drawn adjacent to each other (unless
there are gaps present in the data). The horizontal scale represents classes of
quantitative data values and the vertical scale represents frequencies
Mean The average value
- Obtain by adding all the numbers together and dividing by the total number of
values
Median The middle value when the values are arranged in lowest to highest
Mode The number that occurs the most (with the greatest frequency)
CORRECT Answers
Terms in this set (35)
Data Collections of observations, such as measurements, genders, or survey responses
Population The complete collection of all measurements or data that are being considered
Sample A sub-collection of members selected from a population
Continuous Data Result from infinitely many possible quantitative values where the collection of
values is not countable
Ex. The weight of everyone in the classroom.
Discrete Data Result from when the data values are quantitative and the number of values is
finite or countable
Ex. Number of people with brown eyes in a classroom.
Frequency Distribution Shows how data is partitioned among several categories (or classes) by listing the
categories along with the number (frequency) of data values in each
class/category
Frequency The number of values that fall into the class/category in question
Relative Frequency The frequency of the particular class/category divided by the total number of
data values for a percentage value
Histogram A graph consisting of bars of equal width drawn adjacent to each other (unless
there are gaps present in the data). The horizontal scale represents classes of
quantitative data values and the vertical scale represents frequencies
Mean The average value
- Obtain by adding all the numbers together and dividing by the total number of
values
Median The middle value when the values are arranged in lowest to highest
Mode The number that occurs the most (with the greatest frequency)
