(Revision 11)
MATH 215 Introduction to Statistics complete Assignment 1
2025 Athabasca University
Assignment 1
Overview
Total marks: / 75
This assignment covers content from Unit 1 of the course. It assesses your knowledge of many of the
statistical terms that will be used throughout the course, as well as your ability to organize, display and
summarize data.
Instructions
Show all your work and justify all of your answers and conclusions, except for the True/False
questions.
Keep your work to 4 decimals, unless otherwise stated.
(22 total marks)
1. Observations from the first 25 days of the year showed that the following number of pedestrians used a
particular crosswalk on each day:
19 132 25 78 62 101 84 32 99 71 43 56 64 81 59 67 43 97 105 91 31 66 76 87 125
(8 marks)
a. Construct a frequency distribution for this data using a lower limit for the first class of 15 and
a class width of 20. Indicate the class limits, boundaries, midpoints, frequencies and
cumulative frequencies.
Mathematics 215: Introduction to Statistics Assignment 1 1
, (Revision 11)
(4 marks)
b. Create a relative frequency polygon of the number of pedestrians.
(4 marks)
c. Create a percentage ogive of the number of pedestrians.
Mathematics 215: Introduction to Statistics Assignment 1 2
MATH 215 Introduction to Statistics complete Assignment 1
2025 Athabasca University
Assignment 1
Overview
Total marks: / 75
This assignment covers content from Unit 1 of the course. It assesses your knowledge of many of the
statistical terms that will be used throughout the course, as well as your ability to organize, display and
summarize data.
Instructions
Show all your work and justify all of your answers and conclusions, except for the True/False
questions.
Keep your work to 4 decimals, unless otherwise stated.
(22 total marks)
1. Observations from the first 25 days of the year showed that the following number of pedestrians used a
particular crosswalk on each day:
19 132 25 78 62 101 84 32 99 71 43 56 64 81 59 67 43 97 105 91 31 66 76 87 125
(8 marks)
a. Construct a frequency distribution for this data using a lower limit for the first class of 15 and
a class width of 20. Indicate the class limits, boundaries, midpoints, frequencies and
cumulative frequencies.
Mathematics 215: Introduction to Statistics Assignment 1 1
, (Revision 11)
(4 marks)
b. Create a relative frequency polygon of the number of pedestrians.
(4 marks)
c. Create a percentage ogive of the number of pedestrians.
Mathematics 215: Introduction to Statistics Assignment 1 2
