1)
To graph: A line plot for the given data is to be drawn.
1)

Explanation of Solution
Given information: Data of ages of customers in electronic store:
Graph:
Interpretation:
A line plot shows that the customers of age 16 are in maximum in electronic store.
2)
To graph: A stem and leaf plot of given data is to be drawn.
2)

Explanation of Solution
Given information: Data of ages of customers in electronic store:
Graph:
Key:
Interpretation:
Leaves represent the unit digits of the numbers and stem represent the tens digits.
(a)
To graph: A tally marks of given data is to be drawn.
(a)

Explanation of Solution
Given information: Data of ages of customers in electronic store
Graph:
Interval | Tally Marks | Frequency |
7-14 | |||| | 4 |
15-21 | |||| | 4 |
22-28 | ||| | 3 |
29-35 | |||| | 4 |
36-42 | || | 2 |
43-49 | ||| | 3 |
Interpretation:
The least number is 7 and the greatest number is 46
(a)
To graph: A histogram of given data is to be drawn.
(a)

Answer to Problem 3CT
Sample is 14, 20,32,37,46
Explanation of Solution
Given information: Data of ages of customers in electronic store
Graph:
Interpretation:
Maximum numbers of customers in electronic store are in the age under
5)
To identify: The sample which is selected.
5)

Answer to Problem 3CT
Sample is 14, 20,32,37,46
Explanation of Solution
Given: Data of ages of customers in electronic store
Concept Used: Randomly selected values by arranging in increasing order.
Calculation: Arrange the data in increasing order, then select the 4th, 8th, 12th, 16th, 20th
Increasing order: 7,12,14,14,16,16,16,20,26,27,27,32,32,33,34,37,40,43,45,46
Selected values: 14,20,32,37,46
Conclusion: Sample is 14, 20,32,37,46
Chapter 13 Solutions
EBK PRECALCULUS W/LIMITS
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