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1. Describe how a line graph is different from a frequency polygon.
2. From the data for the five U.S. cities that follow, construct a line graph that shows the relationship between elevation above sea level and mean January temperature. The latitudes of the five cities are almost equal; all are within 1 degree of 35°N latitude. Write a sentence of interpretation.
Based on a random sample of 2,500 people, the estimates of people by age group unemployed in one Northern city are found in the table. Is the study descriptive or inferential?
suppose we select an srs of size n 100 from a large population having proportion p of successes. let p be the
researchers tested whether the gender of hurricane name affects perceived risk amp evacuation intentions. 142
Compute the coefficients of the regression line, interpret the coefficients - sample of 10 games and recorded the number of beers sold and the temperature in the middle of the game.
Test to see if the mean cell phone bill has changed since 2004. Use a .05 level of significance for the test.
Name four types of information bias. Name at least one way in which each type of bias can be prevented or minimized.
Find the probability that the annual income of a hedge fund manager will be greater than $600 million and less than or equal to $1.5 billion.
the mean gross incomes of certified welders are normally distributed with the mean of 20000 and a standard deviation of
Explain how the margin of error is reported in the article, and how and why the margin of error impacts the results of the study.
Discuss the merits and Imitations of representing statistical data through graphs and diagrams. How do you represent data by means of a pie diagram?
Show that the dont pass bettor has a more favorable bet than the roller.
what additional information is obtained from measurements on an interval scale compared to measurements on an ordinal
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