Collect and Organize Data

You can keep track of data in a tally chart by making a mark for each thing counted

Each time a value occurs, mark ‘/’ to the right of the value in the tally chart

To read a value from a tally chart, count the number of tallies to the right of the value

Line plots and tally charts are two methods of organizing data

To make a line plot, draw a number line. Mark the lowest value of the data set on the extreme left. Mark the greatest value of the data set on the extreme right

Above each value, mark a ‘X’ for each time the value occurs

The number of Xs above each value gives the number of times the value occurs