CS: Data Science: Finding Patterns in Tables and Graphs
Use tables and graphs to spot trends, outliers, and relationships in data
CS: Data Science: Finding Patterns in Tables and Graphs
Use tables and graphs to spot trends, outliers, and relationships in data
CS - Grade 6-8
- 1
A fitness app records the number of steps taken each day: Monday 4,200, Tuesday 4,800, Wednesday 5,300, Thursday 5,900, Friday 6,400. Describe the pattern in the data.
Compare each day to the day before it.
The number of steps increases every day. The pattern shows a steady upward trend from Monday to Friday. - 2
A table shows the number of website visitors each hour: 8 AM 12, 9 AM 18, 10 AM 25, 11 AM 33, 12 PM 41. What is the general trend, and what might it mean?
The number of visitors increases each hour. This might mean more people visit the website later in the morning. - 3
A class tracked the number of recycled bottles collected each week: Week 1 40, Week 2 42, Week 3 39, Week 4 95, Week 5 43. Which value looks like an outlier, and why?
An outlier is a data value that is very different from the rest.
The value 95 in Week 4 looks like an outlier because it is much higher than the other values, which are all near 40. - 4
A game records a player's score after each level: Level 1 120, Level 2 240, Level 3 360, Level 4 480. If the pattern continues, what will the score be after Level 5?
The score will be 600 after Level 5 because the score increases by 120 points each level. - 5
A line graph shows the temperature at noon over five days: Monday 70°F, Tuesday 68°F, Wednesday 65°F, Thursday 62°F, Friday 60°F. Describe the trend shown by the graph.
Look at whether the values move up, move down, or stay about the same.
The graph shows a downward trend. The temperature decreases from 70°F on Monday to 60°F on Friday. - 6
A data table shows how long students studied and their quiz scores: 10 minutes 62, 20 minutes 70, 30 minutes 78, 40 minutes 86, 50 minutes 94. What relationship do you notice?
As study time increases, quiz scores also increase. The data shows a positive relationship between study time and quiz score. - 7
A scatter plot compares hours of video game play per week and hours of sleep per night. Most points show that students who play more hours tend to sleep fewer hours. What type of relationship is this?
A negative relationship means the two variables move in opposite directions.
This is a negative relationship because one value tends to increase while the other value tends to decrease. - 8
A school cafeteria records lunch choices for one day: Pizza 85, Tacos 60, Salad 25, Sandwich 45. Which graph type would best compare the number of students choosing each lunch, and why?
Use a graph that compares separate categories.
A bar graph would be best because it makes it easy to compare counts across different categories of lunch choices. - 9
A table shows daily app downloads: Day 1 15, Day 2 30, Day 3 60, Day 4 120. Describe the pattern and predict Day 5.
The number of downloads doubles each day. If the pattern continues, Day 5 will have 240 downloads. - 10
A weather dataset lists rainfall in inches: Monday 0.0, Tuesday 0.1, Wednesday 1.8, Thursday 0.0, Friday 0.2. Which day had the most rainfall, and how does it compare to the rest of the week?
Wednesday had the most rainfall with 1.8 inches. It was much wetter than the other days, which all had 0.2 inches or less. - 11
A data scientist finds this pattern in a table: 3, 6, 9, 12, 15. What rule describes the pattern?
Find the difference between each pair of neighboring numbers.
The rule is to add 3 each time. Each number is 3 greater than the number before it. - 12
A website tests two homepage designs. Design A gets 200 visits and 40 sign-ups. Design B gets 200 visits and 60 sign-ups. Which design performed better, and what evidence supports your answer?
Design B performed better because it had 60 sign-ups from the same number of visits, while Design A had only 40 sign-ups. - 13
A chart shows the number of books checked out from a library by month: January 120, February 125, March 130, April 128, May 132. What pattern do you notice?
Not every pattern is a large change. Some data stays almost the same.
The number of books checked out stays fairly steady with a slight increase overall. The values remain close to the 120 to 132 range. - 14
A table tracks a robot's distance from its starting point every second: 0 seconds 0 meters, 1 second 2 meters, 2 seconds 4 meters, 3 seconds 6 meters, 4 seconds 8 meters. What does this pattern tell you about the robot's movement?
The robot moves at a constant speed. It travels 2 meters each second. - 15
A data table has a missing value: Week 1 5 points, Week 2 10 points, Week 3 15 points, Week 4 blank, Week 5 25 points. What is the most likely missing value, and how do you know?
Look for the amount added from one week to the next.
The most likely missing value is 20 points. The pattern increases by 5 points each week.