Data Handling

What is a tally mark and how is it used?

• A tally mark is a visual representation of numbers, used for counting and recording data.

• A tally mark is a musical notation for rhythm counting.

• A tally mark is a digital symbol used in computer programming.

• A tally mark is a type of currency used in transactions.

Create a pictograph representing the number of pets owned by 5 students: 2 cats, 3 dogs, and 1 bird.

• 🐶🐶🐦🐦

• 🐱🐱 🐶🐶🐶 🐦

• 🐱🐶🐶🐦

• 🐱🐱🐱🐶

How do you interpret data from a bar graph?

• Identify the color of the bars

• Count the total number of bars

• Calculate the average height of the bars

• To interpret data from a bar graph, compare the heights of the bars representing different categories.

Draw a bar graph to represent the following data: Apples - 5, Bananas - 3, Oranges - 4.

• Apples - 6, Bananas - 2, Oranges - 4

• Apples - 4, Bananas - 5, Oranges - 3

• Apples - 3, Bananas - 4, Oranges - 5

• Bar graph: Apples (5), Bananas (3), Oranges (4)

What is the difference between a single bar graph and a double bar graph?

• A single bar graph shows one data set, while a double bar graph shows two data sets for comparison.

• A single bar graph displays data over time, while a double bar graph compares categories.

• A single bar graph can show multiple data sets, while a double bar graph shows only one.

• A single bar graph is used for qualitative data, while a double bar graph is for quantitative data.

Using a double bar graph, compare the scores of two students in three subjects: Math, Science, and English.

• A pie chart showing the average scores of all students in Math, Science, and English.

• A line graph depicting the scores of Student A over time in various subjects.

• A table listing the scores of Student A and Student B in only Math and Science.

• A double bar graph comparing Student A and Student B's scores in Math, Science, and English.

Explain how to convert a tally chart into a bar graph.

• Count the bars, draw tallies, create categories based on bar heights.

• Count the tallies, draw axes, create bars for each category based on tally counts.

• Use colors to represent each tally without counting them.

• Draw a pie chart instead of a bar graph.

What are the advantages of using pictographs over tally marks?

• Pictographs are less visually appealing than tally marks.

• Pictographs are easier to interpret, represent larger quantities with single symbols, and can include relevant images.

• Tally marks can represent images more effectively than pictographs.

• Pictographs are more time-consuming to create than tally marks.

Given a bar graph, how can you determine the mode of the data represented?

• Identify the tallest bar in the graph.

• Calculate the average height of all bars.

• Identify the shortest bar in the graph.

• Count the total number of bars in the graph.

Create a double bar graph to show the sales of two products over four months.

• A double bar graph with months on the x-axis and sales figures on the y-axis, displaying two bars for each month representing the sales of Product A and Product B.

• A line graph showing total sales for each product combined.

• A pie chart comparing the sales of Product A and Product B.

• A single bar graph with only the sales of Product A over four months.