Questions from Statistics

Q: The following scatterplot shows the age and weight for some women.

The following scatterplot shows the age and weight for some women. Some of them exercised regularly, and some did not. Explain what it means that the blue line (for those who did not exercise) is a bi...

Q: a. The following figure shows hypothetical data for a group of

a. The following figure shows hypothetical data for a group of children. By looking at the figure, state whether the correlation between height and test score is positive, negative, or near zero. b. T...

Q: The acceptance rate for a sample of law schools and the percentage

The acceptance rate for a sample of law schools and the percentage of students employed at graduation are on this text’s website. A low acceptance rate means the law school is highly selective in admi...

Q: The LSAT is a standardized test required for entrance to most law

The LSAT is a standardized test required for entrance to most law schools. The high LSAT score for admitted students and the percentage of students passing the bar exam immediately after law school gr...

Q: Data on the fat, carbohydrate, and calorie content for a

Data on the fat, carbohydrate, and calorie content for a sample of popular snack foods are found on this text’s website. Use the data to determine which is a better predictor of the number of calories...

Q: Does education pay? The salary per year in dollars, the

Does education pay? The salary per year in dollars, the number of years employed (YrsEm), and the number of years of education after high school (Educ) for the employees of a company were recorded. De...

Q: Move studios try to predict how much money their movies will make

Move studios try to predict how much money their movies will make. One possible predictor is the amount of money spent on the production of the movie. The table shows the budget and amount of money ma...

Q: The following table gives the number of miles per gallon in the

The following table gives the number of miles per gallon in the city and on the highway for some of the most fuel efficient cars according to Consumer Reports. Make a scatterplot of the data using cit...

Q: Are the following variables, from Table 1A, numerical or categorical

Are the following variables, from Table 1A, numerical or categorical? Explain. a. Living situation b. Commute distance c. Number of aunts

Q: The following scatterplot shows information about the world’s tallest 169 buildings.

The following scatterplot shows information about the world’s tallest 169 buildings. Stories means floors. a. What does the trend tell us about the relationship between stories and h...