Data Handling

If the data set is $9, 3, 5, 1, 7$, what is the number in the middle when arranged in ascending order?

How many tally marks will you draw for the number $14$?

Which of these is used to represent data using symbols or pictures?

If $1$ raincoat symbol represents $15$ raincoats in a pictograph, how many raincoats do $4$ symbols represent?

A store tracks electric heaters sold. If the key is $1$ heater symbol $= 8$ heaters, how many heaters are shown by $8$ symbols?

In a furniture store pictograph, $1$ mirror symbol represents $5$ mirrors. How many mirrors are shown by $14$ symbols?

In a bar graph showing the favorite pets of $50$ students, the bar for 'Cats' is $20$ students. How many students chose other pets?

If a bar graph scale is $1$ unit length $= 50$ people, what population is represented by a bar of $10$ units?

A bar graph shows the number of pens sold: Blue $= 25$, Black $= 30$, Red $= 15$. How many more black pens were sold than red pens?

What is the likely result of using a scale that is too small (e.g., $1$ unit $= 1$) for very large data values (e.g., $1,000,000$)?

If one bar represents $20$ items and another represents $60$ items using the same scale on a graph, what is the ratio of their heights?

If the names of the categories are very long (e.g., 'Favorite Extracurricular Activities'), which type of bar graph orientation is often easier to label and read?