The correct way to construct a scatterplot involves properly identifying the independent and dependent variables. Here’s a breakdown of the statements:
-
When analyzing the number of home runs that a baseball player hit over several seasons, the season is the independent variable. - This is correct. The season (or time) is the independent variable, while the number of home runs is the dependent variable.
-
When analyzing the number of umbrellas that are sold during days with varying amounts of rain, the number of umbrellas that are sold is the independent variable. - This is incorrect. The amount of rain is the independent variable, while the number of umbrellas sold is the dependent variable.
-
When analyzing the number of registered voters by age, age is the dependent variable. - This is incorrect. Age is the independent variable, while the number of registered voters would be the dependent variable.
-
When analyzing the number of students that ride the school bus each day of the week, the day is the dependent variable. - This is incorrect. The day of the week is the independent variable, while the number of students is the dependent variable.
In summary, the first statement is the only one correctly identifying the independent variable.