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Question
The table below provides summary information about students in a class. The sex of each individual and their age is given.| Male | Female | Total | |
Under 20 yrs old |
10 | 8 | 18 |
Between 20 and 25 yrs old. |
12 | 18 | 30 |
| Older than 25 yrs. | 26 | 26 | 52 |
| Total | 48 | 52 | 100 |
A student is randomly selected from this group, and it is found that the student is older than 25 years. What is the probability that the student is a male?
a) 0.21
b) 0.10
c) 0.50
d) 0.54
e) 0.26
Answer
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Q:
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Annie Mikhail, market analyst for a national company specializing in historic city tours, is analyzing the relationship between the sales revenue from historic city tours and the size of the city. She gathers data from six cities in which the tours are offered. Annie's dependent variable is annual sales revenues and her independent variable is the city population. Regression analysis of the data yielded the following tables. Coefficients
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Q:
Annie Mikhail, market analyst for a national company specializing in historic city tours, is analyzing the relationship between the sales revenue from historic city tours and the size of the city. She gathers data from six cities in which the tours are offered. Annie's dependent variable is annual sales revenues and her independent variable is the city population. Regression analysis of the data yielded the following tables. Coefficients
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MS
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3.550325
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0.224675
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Q:
Annie Mikhail, market analyst for a national company specializing in historic city tours, is analyzing the relationship between the sales revenue from historic city tours and the size of the city. She gathers data from six cities in which the tours are offered. Annie's dependent variable is annual sales revenues and her independent variable is the city population. Regression analysis of the data yielded the following tables. Coefficients
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The numerical value of the coefficient of determination must be _______.
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A standard deviation of the error of the regression model is called the _______.
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