Holt SP7 Chapter 1 Word Scramble
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Question | Answer |
Random Sample | a sample in which each member of the population hasequal chance of being selected. |
Population | the complete collection of the group to be studied. |
Sample | part of the population. |
Mean | the sum of the values divided by the number ofvalues in the data set. |
Median | the middle value. |
Mode | the value that occurs most often.Sometimes there is no mode. |
Range | Find the difference between the least and greatest values. |
Frequency Table | organizes data into groups. |
Cumulative Frequency Table | includes a running total of the frequencies of all the previous groups. |
Stem and Leaf Plot | shows how often data values occur and how they are distributed. Numbers are separated into two parts: the stem and the leaves. The stem shows the leftmost digit in each number,and the leaves show the rightmost digit in each number. |
Bar Graph and Double Bar Graph | uses bars to compare data.A graph compares two sets of data. |
Histogram | is used to represent data in a frequency table. The bars touch and both axes show numerical data. |
Box and Whisker Plot | presents a summary of a set of data bypresenting the data in four equal parts. |
Ways graphs can be misleading | • An axis is “broken” or numbers are left out on an axis.• The intervals on an axis are not the same length.• Different sizes are used to represent bars in a bar graph.• Pictorial graphs could distort the data. |
Created by:
melissa.matusiak
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