The Statistical Process

Which of the following are categorical data?

• numbers of inches of rain

• types of drinks

• length of movies (in minutes)

• weights of students

In a histogram, which bin would include both of the data values 30 and 35?

• 0-10

• 10-20

• 20-30

• 30-40

In the histogram, how many observations are included in the data set?

• 20

• 100

• 50

• 80

John conducted an experiment in the school yard. He had his classmates run 100 meters and recorded the time it took each classmate to run the distance. How also recorded the gender of each classmate. What question was John trying to answer with the experiment?

• How tall is the average students?

• How quickly can students run 1 kilometer?

• Do girls or boys have longer hair?

• Do boys or girls complete the 100-meter dash faster?

Which of the following allows you to compare the frequency of intervals, but not the frequency of exact values?

• a dot plot

• a histogram

• a stem-and-leaf plot

• a circle graph

Which of the following questions is best answered with a survey?

• How many students like vanilla ice cream more than any other flavor?

• What is the average temperature on the planets in our solar system?

• What is the high temperature on Tuesday?

• How quickly does the Earth rotate?

Which step comes after formulating a statistical question in the statistical process?

• collecting data

• making graphs

• analyzing the data

• drawing conclusions

Which best describes a statistical question?

• a question that contains numbers

• a question about numbers

• a question about designing a quantitative experiment

• a question that anticipates an answer based on data that vary

Which data for the class survey would be best to display using a histogram?

• eye color

• video game playing time

• number of pets

• birthday month

What type of table or graph do you use to help you make a histogram?

• a dot plot

• frequency table

• circle graph

• bar graph