Chapter 6: Collect and Organize Data
Lesson 1: Collect and Organize Data. Objective: To collect and organize data by suing fequency tables.
Lesson 2: Find Mean, Median, and Mode. Objective: To find the mean, median, and mode of a set of data.
Lesson 3: Read Line Plots. Objective: To read and organize data in line plots.
Lesson 4: Make Stem-and-Leaf Plots. Objective: To make stem-and-leaf plots.
Lesson 5: Compare Graphs. Objective: To compare data in graphs using a variety of scales.
Lesson 6: Problem Solving Strategy: Make a Graph. Objective: To solve problems by using the strategy make a graph.
Vocabulary: data, tally, pictograph, survey, frequency, cumulative frequency, mean, median, mode, line plot, range, outlier, stem-and-leaf plot, stem, leaf, interval, scale
data: information collected about people or things
tally: a mark used to show how often something happens
pictograph: a graph that uses pictures to show data
survey: a method of gathering data by asking questions
frequency: the number of times a response occurs
cumulative frequency: a running total of frequencies
mean: the average of a set of numbers, found by dividing the sum of the set by the number of addends
median: the middle number in an ordered set of numbers
mode: the number or itemin a set of data the occurs the most often
line plot: a graph that shows the frequency of data long a number line
range: the difference between the least and the greatest values in a set of data
outlier: a data value that stands out from the other data values in the set
stem-and-leaf plot: a table that shows groups of data arranged by place value
stem: each tens didit in a stem-and-leaf plot
leaf: each ones digit in a stem-and-leaf plot
interval: the distance between the numbers on the scale
scale: a series of numbers placed at fixed distances to label a graph
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