Concept explainers
To calculate: The total attendance at a community pool for the temperature
Answer to Problem 3AGP
The attendance is 439.45
Explanation of Solution
Given Information: A table consisting of the values of attendance and corresponding temperatures.
Calculation:
An equation of the best fit line is given by,
- Here, a is the intercept and bis the slope.
Find
92 | 395 | 36340 | 8464 |
102 | 309 | 31518 | 10404 |
97 | 332 | 32204 | 9409 |
104 | 307 | 31928 | 10816 |
108 | 251 | 27108 | 11664 |
110 | 178 | 19580 | 12100 |
111 | 164 | 18204 | 12321 |
111 | 149 | 16539 | 12321 |
107 | 273 | 29211 | 11449 |
105 | 299 | 31395 | 11025 |
Sum of every column is,
Calculate a as,
Calculate b as,
Substitute the values of a and b in equation (1),
Hence, the equation of best line is,
Now, when the temperature is 90 degrees,
The value of x will be 90. The value of y from equation (1) is,
Chapter 4 Solutions
Algebra 1, Homework Practice Workbook (MERRILL ALGEBRA 1)
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