Essential Question: How can we analyze and interpret data to make informed decisions?
Learning Target: Students will be able to summarize and interpret data using measures of central tendency (mean, median, mode, range, and quartiles) and create visual representations (such as graphs and charts) to effectively communicate their findings.
Show your work for full credit.
Find the mean, median, mode(s), and range of each data set. (Round your answer to two decimal places.)
Make the data is organized from smallest to greatest.
Mean (average)=
Median (Q₂)=
Mode(s)=
Range=
Find the mean, median, mode(s), and range of each data set. (Round your answer to two decimal places.)
Make the data is organized from smallest to greatest.
Mean (average)=
Median (Q₂)=
Mode(s)=
Range=
Find the mean, median, mode(s), and range of each data set. (Round your answer to two decimal places.)
Make the data is organized from smallest to greatest.
Mean (average)=
Median (Q₂)=
Mode(s)=
Range=
Find the mean, median, mode(s), and range of each data set. (Round your answer to two decimal places.)
Make the data is organized from smallest to greatest.
Mean (average)=
Median (Q₂)=
Mode(s)=
Range=
Find the mean, median, mode(s), and range of each data set. (Round your answer to two decimal places.)
Make the data is organized from smallest to greatest.
Mean (average)=
Median (Q₂)=
Mode(s)=
Range=
The stem-and-leaf plot to the left shows the prices of homes that recently sold in a neighborhood. Find all the measures of center. (Round your answer to the nearest whole number.)
Mean (average)=
Median (Q₂)=
Mode(s)=
Range=
How many homes sold for less than $205,000?
The stem-and-leaf plot below shows the amount of weight loss in one month by employees
participating in a challenge. Find all the measures of center. (Round your answer to one decimal places.)
Mean (average)=
Median (Q₂)=
Mode(s)=
Range=
How many people participated in the challenge?
How many employees lost at least 7 pounds?
The histogram shows the number of text messages sent each day by a group of students. Use the histogram to answer the questions
How many students sent between 10 and 19 text messages?
How many students sent more than 29 text messages?
Which interval contains the fewest text messages?
What percent of the students sent between 40 and 59 text messages? (Remember to find percent means (part/whole)*100)
The histogram shows the scores from a recent math test. Use the histogram to answer the
questions. (Round your answer to 2 decimal places)
How many students scored below an 81%?
Which interval contains the most scores?
What percent of the students scored no higher than 60%? (Remember to find percent means (part/whole)*100)
What percent of the students scored at least an 81%? (Remember to find percent means (part/whole)*100)
The box-and-whisker plot below represents the heights of a group of students. Give the five
number summary, then answer the questions below.
Minimum=
Maximum=
Lower Quartile (Q1)=
Median (Q2)=
Upper Quartile (Q3)=
What is the interquartile range?
What is the range?
What percent of the students are between 56 and 60 inches tall?
What percent of the students are at most 74 inches tall?
Does the data vary more above or below the median? (Which half of the graph is longer?