Question

1. what is a way to represent data change over time?
2. what is a way to represent percentages of a whole?
3. what is the factor in an experiment that is measured?
4. what is the predicted variable in an experiment?

Explanation:

First Question: What is a way to represent data change over time?

To represent data change over time, a line graph (or time - series graph) is commonly used. In a line graph, the x - axis is typically used to represent time (such as days, months, years) and the y - axis represents the variable whose change we are observing (like sales, temperature, population). As time progresses, we plot the values of the variable at different time points and connect these points with a line. This makes it easy to see trends (whether the variable is increasing, decreasing, or staying relatively constant) and patterns in the data over the period of time.

A pie chart is an excellent way to represent the percentages of a whole. A pie chart is a circular graph that is divided into slices. Each slice represents a proportion (or percentage) of the whole. The total of all the percentages in a pie chart should be 100% (or 1 in terms of proportion). For example, if we want to show the percentage of different types of expenses (like rent, food, transportation) in a person's monthly budget, a pie chart can clearly display what portion of the total budget each expense category takes up.

In an experiment, the factor that is measured is called the dependent variable. The dependent variable is the variable whose value depends on the independent variable (the variable that is manipulated or changed by the experimenter). For example, in an experiment to see how the amount of fertilizer (independent variable) affects the height of plants (dependent variable), we measure the height of the plants (the dependent variable) to see the effect of the different amounts of fertilizer.

Answer:

A line graph (or time - series graph)

Second Question: What is a way to represent percentages of a whole?