Answer:
1.d
2.b
3.c
4.b
Step-by-step explanation:
1.Bar graphs are used to compare things between different groups or to track changes over time.
2.A histogram is used to summarize discrete or continuous data.
3.Pie charts are best to use when you are trying to compare parts of a whole.
4.A line graph displays data that changes continuously over periods of time.
