Question

1 ) Define Pictograph. Bar graph. Double bar graph.
Histogram. Pie chart and Probability​

Answer 1

Answer:

1. A pictorial:

A symbol for a word or phrase. Pictographs were used as the earliest known form of writing, examples having been discovered in Egypt and Mesopotamia from before 3000 BC.

2. A bar graph:

bar chart or bar graph is a chart or graph that presents categorical data with rectangular bars with heights or lengths proportional to the values that they represent. The bars can be plotted vertically or horizontally. ... A bar graph shows comparisons among discrete categories.

3. A double bar graph:

Double-Bar Graph. Double-Bar Graph. A double-bar graph is a bar graph that displays two sets of data.