WorksheetsData Analysis EOC (2024)
Total questions: 25
Worksheet time: 27mins
In a random survey, customers rated two products of a company on a scale of 1 to 10. The dot plots show the results of the survey.
What is the difference between the ranges of the two dot plots?
Click on the image to read the question.
Analyze the box plots (click image to enlarge) in order to complete the statements below.
The friend that most likely has an outlier in his data set is Friend # (a) ,
and the outlier is most likely the (b) value.
Therefore, for this friend's data set, the mean is most likely (c) the median.
Mr. Cooper asks the students in his 5 classes how many pages they read in their books last week. He creates box plots with the data. The box plot for Class 5 is shown.
Which class's box plot has an interquartile range that is equal to Class 5's interquartile range?
Which pair of box plots for chicken and beef sandwiches could represent the data in the histograms? (click image)
The natural gas produced by an Ohio electric company in one year is shown (click image).
Which box plot best represents these same data?
Jurrell keeps track of the number of customers that come to his bakery each day for 1 month. A summary of the data is shown.
Which box plot represents the data?
The frequency table shows some information about the interiors of cars and trucks at a dealership.
COPY THE TABLE ONTO PAPER!
How many trucks have leather seats?
COPY THE TABLE ONTO PAPER!
Ava has 48 fiction books and 22 nonfiction books.
She has 18 total books that are signed by their author.
There are 40 fiction books that are unsigned.
Complete the two-way frequency table in order to determine
how many NONFICTION books are UNSIGNED.
An analyst researches the relationship between different energy sources in each state for 2015. The data in the table show the number of states that use coal and nuclear power as an energy source.
Given that a state does NOT use nuclear power, what percentage of those states use coal?
Answer: (a)
A gardening club measures the weight, in pounds (lb), of each pumpkin in its garden at the end of the growing season. The histogram shows the weights of the pumpkins.
Complete the statements that describe what happens to the mean and the range of the data when all the pumpkins in the 4-to-6-pound category are removed.
The mean of the data will (a) .
The range of the data will (b)
Which statistical measure changes when every number in a data set is increased by 10?
Range
Mean
Standard deviation
Interquartile range
The histograms shown display the number of cans of food donated by students in the freshman class and the sophomore class at a school.
Which statement is true?
The freshmen have a higher median number of cans donated than the sophomores.
The freshmen have the same median number of cans donated as the sophomores.
The freshmen have a higher mean number of cans donated than the sophomores.
The freshmen have a lower mean number of cans donated than the sophomores.
A gym teacher compares the points scored by three basketball teams in their last 11 games.
The points scored by Team A are listed, and the scores of Team B and Team C are shown by the box plots shown (click image).
The team with the LARGEST INTERQUARTILE RANGE of scores is (a) .
The team with the LOWEST MEDIAN score is (b) .
The team with the SMALLEST INTERQUARTILE RANGE of scores is (c) .
A landscaper records the heights, in feet, of 15 newly planted trees in a community garden, as shown (click image).
Based on frequency, determine the height of the histogram bar graph for each of the following tree height categories:
Tree height between 2-3 feet: Frequency bar height = (a)
Tree height between 3-4 feet: Frequency bar height= (b)
Tree height between 4-5 feet: Frequency bar height= (c)
Tree height between 7-8 feet: Frequency bar height= (d)
A restaurant surveyed its customers by asking them to rate their dining experience on a scale of 1 to 10. The results for all 200 participants are shown in the histogram and the table.
Which statement justifies why the median is greater than the mean for the data?
The data are skewed.
There is a large standard deviation.
There are gaps in the data distribution.
The distribution is roughly symmetrical.
A scatterplot is shown. Which linear function best fits the data?
y=3x+1.75
y=1.75x+3
y=3x+3
y=1.75x
Select all of the correlation coefficients that represent a linear model with a weak correlation.
−0.982
−0.618
−0.103
0.204
0.907
In 2016, a writer for a used car magazine researched the year and average sale price of a particular car make and model at 12 different used car dealers. His data are shown in the table.
He used this information to create the given linear model for the predicted average price, P, in dollars, of the car based on its age in 2016, x years since the year of manufacturing.
P=27922−1881x
Which interpretation of the model is true?
For every year after the year of manufacturing, the average price of the car is $27,922.
For every year after the year of manufacturing, the average price of the car increases by $1,181.
For every year after the year of manufacturing, the average price of the car decreases by $1,181.
For every year after the year of manufacturing, the average price of the car decreases by $27,922.
Bryson collects data on the depth of a river at various points and the velocity of the river at those points. His data have a correlation coefficient of −0.9382 .
Which scatterplot could represent Bryson's data?
The average price each year for an airline ticket from 2010 to 2018 is shown in the table. The linear correlation coefficient for the data is r=−0.713 .
Which statement best interprets the linear correlation coefficient r for the data?
Airline ticket prices are likely to decrease as time goes on.
The average airline ticket price decreases by 71.3% each year.
The average airline ticket price decreases by $71.30 each year.
Airline ticket prices are guaranteed to decrease as time goes on.
A store manager records the total visitors and sales, in dollars, for 10 days. The data are shown in the scatterplot.
What conclusion can the store manager draw based on the data?
An increase in sales causes a decrease in visitors.
An increase in visitors causes an increase in sales.
An increase in sales is correlated with a decrease in visitors.
An increase in visitors is correlated with an increase in sales.
A survey of 680 households asked about cable television and video streaming service subscriptions.
** 540 households have a video streaming service
** 80% of the total households have cable television
** Of the households with no cable television, 7 times as many have a streaming service as have no video streaming service.
Complete the two-way frequency table to summarize the data from the survey.
A TOTAL of (a) households have Cable Television.
A TOTAL of (b) households have NO Cable Television.
There are (c) households with NO Cable, NO Streaming.
There are (d) households with Cable AND Streaming.
Alton studies the growth patterns of sassafras trees and yellow birch trees in the 88 counties in Ohio. He finds that –
** Approx. 27% of the counties have both species of trees
** Yellow birch only grows in 24 counties
** 1 out of 11 counties grows neither species
Complete the table.
In (a) counties, BOTH species grow.
In (b) counties, NEITHER species grows.
Sassafras grows in a TOTAL of (c) counties.
Leroy asked a total of 133 juniors and seniors at his school whether they drive to school or ride the bus to school. The results are given.
** 38 juniors ride the bus to school
** There are 7 more juniors than seniors
** Exactly ⅔ of the seniors drive to school.
Complete the table to show the results.
There are a total of (a) seniors.
There are a total of (b) juniors.
There are (c) seniors who drive to school.
There are (d) juniors who drive to school.
