Students will organize measurement data on line plots marked in whole, half, and quarter units.
A line plot shows the lengths of \(10\) pencils to the nearest \(\frac{1}{4}\) inch. There are three X's above \(4\frac{1}{2}\) inches. What does this mean?
This line plot shows ribbon lengths in inches. The scale goes by halves: \(3, 3\frac{1}{2}, 4, 4\frac{1}{2}, 5\). How many ribbons are \(4\) inches long?
Sam measured the heights of flower stems in inches. The line plot below shows halves: \(2, 2\frac{1}{2}, 3, 3\frac{1}{2}\). What is the most common stem height?
A line plot shows fish tank measurements in inches using quarters: \(6, 6\frac{1}{4}, 6\frac{1}{2}, 6\frac{3}{4}, 7\). How many measurements in total?
Mia recorded the weights of apples in ounces. The line plot shows: \(4, 4\frac{1}{2}, 5, 5\frac{1}{2}\). Which weight has the least X's?
A line plot shows book page counts: \(50, 50\frac{1}{2}, 51, 51\frac{1}{2}, 52\) pages. There are two X's at \(50\) pages, one X at \(50\frac{1}{2}\) pages, four X's at \(51\) pages, one X at \(51\frac{1}{2}\) pages, and one X at \(52\) pages. Which page count appears the least often?
Emma measured twig lengths in inches. At the \(4\) inch mark, there are \(5\) X's. At the \(4\frac{1}{4}\) inch mark, there are \(3\) X's. How many more twigs are exactly \(4\) inches long than \(4\frac{1}{4}\) inches long?
A line plot shows toy car weights in ounces with quarter marks: \(2, 2\frac{1}{4}, 2\frac{1}{2}, 2\frac{3}{4}, 3\). How many toy cars weigh at most \(2\frac{1}{2}\) ounces?
Each X represents one measurement. Three X's above \(4\frac{1}{2}\) means three pencils have that length.
Count the X's directly above the \(4\)-inch mark. There are three X's stacked there.
The value with the most X's is the mode. At \(2\) inches, there are \(3\) X's. This is more than any other value.
Count all the X's: one at \(6\), one at \(6\frac{1}{4}\), two at \(6\frac{1}{2}\), one at \(6\frac{3}{4}\). Total is \(5\).
At \(5\frac{1}{2}\), there are zero X's. All other values have at least one X.
Both \(50\frac{1}{2}\) and \(52\) pages have only \(1\) X each, but \(50\frac{1}{2}\) is one of the least common. The next most common is \(50\) pages with \(2\) X's, and \(51\) pages appears most often with \(4\) X's.
Subtract: \(5 - 3 = 2\) more twigs are \(4\) inches long.
At most \(2\frac{1}{2}\) includes weights of \(2\), \(2\frac{1}{4}\), and \(2\frac{1}{2}\) ounces. The plot has \(1+3+0=4\) X's at those values.
