Description
Week 2 – Graphing and Describing Data
Week | Assignments | Due Date |
Week 2 | Graded Discussion | Due Date—
Responses: Sunday of Week 2 [Have two posts on two different days] |
Knewton Homework Assignments
Frequency Tables (Section 2.1) Frequency Tables & Histograms (Section 2.1) Stem & Leaf (Section 2.1) Line & Bar Graphs (Section 2.1) |
Sunday of Week 2 | |
Knewton Quiz #1
· Covers Week 1 – 2 Material · 25 Questions · 2 Attempts |
Sunday of Week 2 |
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Week 2 Assignment – Frequency Tables
Objectives
2.1 Frequency Tables
- Constructing and understanding frequency tables for a set of data, given class limits
- Construct and understand cumulative relative frequency tables for a set of data
Activity 1
Question
Given the relative frequency table below, which of the following is the corresponding cumulative relative frequency table?
Value | Relative Frequency |
5 | 0.17 |
6 | 0.27 |
7 | 0.1 |
8 | 0.26 |
9 | 0.2 |
Answer
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Activity 2
Question
Given the relative frequency table below, which of the following is the corresponding cumulative relative frequency table?
Value | Relative Frequency |
4 | 0.35 |
5 | 0.2 |
6 | 0.05 |
7 | 0.4 |
Answer
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Activity 3
Question
A data set is summarized in the frequency table below. The data set contains a total of 50 data values. What is the missing frequency?
Value | Frequency |
1 | 5 |
2 | 6 |
3 | 5 |
4 | 6 |
5 | □ |
6 | 5 |
7 | 8 |
8 | 4 |
9 | 4 |
10 | 3 |
Answer
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Activity 4
Question
A data set is summarized in the frequency table below. Using the table, determine the number of values less than or equal to 7 in the data set. Give your answer as a single number. For example if you found the number of values was 16, you would enter 16.
Value | Frequency |
3 | 8 |
4 | 4 |
5 | 3 |
6 | 2 |
7 | 2 |
8 | 7 |
9 | 3 |
10 | 6 |
11 | 3 |
12 | 7 |
Answer
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Activity 5
Question
The cumulative relative frequency table for a set of data is shown below.
What is the missing cumulative relative frequency?
Data Value | Relative Frequency | Cumulative Relative Frequency |
5 | 0.18 | 0.18 |
10 | 0.24 | □ |
15 | 0.32 | 0.74 |
20 | 0.26 | 1.00 |
Answer
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Activity 6
Question
An instructor asks students to rate their anxiety level on a scale of 1 to 100 (1 being low anxiety and 100 being high anxiety) just before the students take their final exam. The responses are shown below.
Construct the table for the instructor using six classes.
48,50,71,58,56,55,53,70,63,74,64,33,34,39,49,60,65,84,54,58
Provide your answer below:
Answer
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Activity 7
Question
The values and relative frequencies for a set of data are shown below.
Complete the cumulative relative frequency table.
Provide your answer below:
Data Value | Relative Frequency | Cumulative relative frequency |
1 | 0.19 | |
2 | 0.35 | |
3 | 0.29 | |
4 | 0.17 |
Answer
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Activity 8
Question
Given the relative frequency table below, which of the following is the corresponding cumulative relative frequency table?
Value | Relative Frequency |
2 | 0.23 |
3 | 0.33 |
4 | 0.24 |
5 | 0.2 |
Select the correct answer below:
Answer
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Activity 9
Question
William wishes to view a frequency table for grouped data using his monthly credit card statements for the last 20 months, shown below. Construct the table for William using six classes.
1184, 1247, 945, 1124, 1034, 1352, 1025, 1439, 1136, 1439, 1368, 1057, 1130, 1259, 1256, 1381, 838, 1342, 842, 1395
Provide your answer below:
Answer
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Activity 10
Question
A data set is summarized in the frequency table below. Using the table, determine the number of values less than or equal to 7 in the data set. Give your answer as a single number. For example if you found the number of values was 16, you would enter 16.
Value | Frequency |
3 | 8 |
4 | 4 |
5 | 3 |
6 | 2 |
7 | 2 |
8 | 7 |
9 | 3 |
10 | 6 |
11 | 3 |
12 | 7 |
Answer
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Activity 11
Question
As the manager of a store, you wish to determine the amount of money that people who visit this store are willing to spend on impulse buys on products placed near the checkout register. You sample twenty individuals and record their responses. Construct a frequency table for grouped data using five classes.
8,18,15,10,29,4,15,2,4,9,16,14,13,8,25,25,27,1,15,24
Provide your answer below:
Answer
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Activity 12
Question
A group of students were surveyed about the number of times they went to a movie theatre last year. Their responses are summarized in the relative frequency table below.
What is the cumulative relative frequency of students that went to 7 or fewer movies?
Number of Movies | Relative Frequency |
0−1 | 0.08 |
2−3 | 0.20 |
4−5 | 0.30 |
6−7 | 0.24 |
8−9 | 0.10 |
10 or more | 0.08 |
Answer
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Activity 13
Question
Given the relative frequency table below, which of the following is the corresponding cumulative relative frequency table?
Value | Frequency |
4 | 0.35 |
5 | 0.2 |
6 | 0.05 |
7 | 0.4 |
Answer
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Activity 14
Question
A group of students were surveyed about the number of siblings they have. The frequencies and relative frequencies of their responses are shown in the below.
Complete the cumulative relative frequency table.
Number of Siblings | Relative Frequency |
0 | 0.18 |
1 | 0.33 |
2 | 0.16 |
3 | 0.14 |
4 or more | 0.19 |
Provide your answer below:
Answer
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Activity 15
Question
Given the relative frequency table below, which of the following is the corresponding cumulative relative frequency table?
Value | Frequency |
4 | 0.28 |
5 | 0.24 |
6 | 0.04 |
7 | 0.2 |
8 | 0.24 |
Answer
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Activity 16
Question
A small start-up company wishes to know how many hours, per week, that its employees spend commuting to and from work. The number of hours for each employee are shown below. Construct a frequency table for grouped data using four classes.
9, 18, 18, 14, 13, 4, 12, 9, 13, 10, 20, 12, 19, 20, 13, 3, 5, 20, 17, 1
Provide your answer below:
Answer
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Activity 17
Question
William wishes to view a frequency table for grouped data using his monthly credit card statements for the last 20 months, shown below. Construct the table for William using six classes.
1312, 1303, 809, 1477, 1263, 1444, 894, 1051, 1485, 1433, 1132, 1221, 1179, 945, 995, 1179, 1172, 1373, 906, 955
Provide your answer below:
Answer
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