benchmark quiz

shows the number of items with values less than or equal to upper limit of each class

a characteristic or attribute that can assume different values

a distribution used when the range is large and classes of several units width are needed-mode

the value that lies halfway between the upper and lower limit-class boundary

a group of individual values

range- the difference between the largest and smallest value

ogive- cumulative frequency graph

meadian- middle of the set of data values

consist of all subjects that are being studied

the science of collecting and interpreting data

three most common graphs: frequency polygon, histograph, and ogive

histograph- a graph that displays the data by using contigous vertical bars of heights

ogive- a graph that displays the data by using lines that connect points for a frequency

variables that are determined by chance

the largest value within the class

the likelihood of something happening

the distance between lower and upper limits

a decision making process for evaluating claims about a population

a distribution that uses individual data and has a small range of data- ungrouped frequency distribution

a group of subjects selected from a population

common measures of position: percentiles, deciles and quartilles

a parameter is a characteristic determined by chance

values that occur the most- mode

a frequency distribution used wen the data are categorical- a categorical frequency distribution

values that can be determined by measurements

the value halfway between the lower and upper limits- class midpoint

each value in each data set

statistic is a characteristic or measure obtained by data values

measure of average are called central tendencies.

the lowest value within the class