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Collecting and Organizing Data Answers

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Dan gave five sunflower seedlings each a different type of fertilizer. He measured the initial and final heights of each plant after a month, then calculated the total growth of each one in centimeters. Which is the best method for visually representing the data for comparison?

bar graph

pie graph

data table

Venn diagram

Where in a data table should units of measurement be shown?

in a separate column after the column of data values

in parentheses, in the title of the table

in the headings of columns that list the data values

in a note next to an asterisk, below the table

Which tool would be likely to provide the most accurate measurement of time in a laboratory experiment involving sprinting times of students?

a wall clock

an egg timer

a stopwatch

a calendar

Which action is the best example of a direct observation?

identifying which bird was present by the tracks that it leaves in the sand at a beach

reading numbers on a heat sensor to conclude that there is a deer in the night woods

listening to a cricket chirp at night and counting the number of chirps per minute

determining the seal population of an island by counting seals in 10 square meters of the island

Carlos is heading a student council project to improve cafeteria meals. He surveyed all students who eat cafeteria lunches to find out which of the five weekly cafeteria options they like least. What steps should Carlos take to best display this data?

He should total the votes for each of the options and plot these five values in a pie chart.

He should total the votes for each of the options and plot these five values in a line graph.

He should average the votes for each of the options and list the averages in a data table.

He should analyze the votes for each option and summarize the findings in a paragraph.

Jim’s heart rate was monitored during periods of exercise and periods of rest. The graph shows the result of one 50-minute test.Which statement is an inference that can be made by using the graph?

Jim’s heart rate was 60 beats per minute at the start of the test.

Jim’s maximum heart rate during the test was 140 beats per minute.

Jim’s heart rate increased steadily as he continued exercising.

Jim’s heart rate decreased quickly after 30 minutes since he is in good shape.

Tonya plans to use the lab instrument that is shown below in an experiment.Which property of matter does the instrument measure?

mass

volume

density

temperature

This graph shows how tall five types of trees were after they grew for 10 years. Which statement correctly describes the data shown in the graph and the type of observation used?

The gingko tree grew 14 feet; this is a qualitative observation.

The bur oak tree’s growth rate averaged 2.5 feet per year; this is a quantitative observation.

The bur oak tree is twice the height of the ash tree; this is a qualitative observation.

The Norway spruce grew more slowly than the sycamore every year; this is quantitative data.

LeeAnn wants to organize her data from researching the effect of hours of sunlight on plant growth to see if there is a trend in the data. Which would be the best way for LeeAnn to display her data for analysis so she can make predictions about the amount of light needed for maximum growth?

in a line graph

in a data table

in a bar graph

in a pie graph

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