Test: Data Handling- 1 - Class 8 MCQ

 A pie chart is a circular chart divided into wedge-like sectors, illustrating proportion. Each wedge represents a proportionate part of the whole, and the total value of the pie is always 100 percent. Pie charts can make the size of portions easy to understand at a glance.

An event in probability refers to one or more outcomes of an experiment. Here's why option B is correct:

• An event is a set of possible outcomes from a probability experiment.
• For example, when rolling a die, an event could be rolling an even number, which includes the outcomes 2, 4, or 6.
• Events can be simple (a single outcome) or compound (multiple outcomes).
• Understanding events is crucial for calculating probabilities in various scenarios.

The central total angle in a pie chart is:

• The correct answer is C: 360°.
• A pie chart represents data in a circular format, where the entire circle makes up 100% of the data.
• A full circle has an angle of 360 degrees.
• Each segment or "slice" of the pie chart corresponds to a part of the total 360°.

A circle graph, also known as a pie chart, represents the relationship between a whole and its parts. This type of graph divides a circle into sectors, where each sector's angle is proportional to the quantity it represents relative to the total.

• The entire circle represents the whole data set.
• Each sector or slice represents a part of the whole.
• It is useful for showing percentage or proportional data.
• Best used when comparing parts of a whole rather than individual data points.

Therefore, the correct answer is C: Relationship between a whole and its part.

When we find the central angle on pie chart we get 18/36 * 360 =180 degree, which is half of complete angle 360. so people loveing reading can be represented by semi circular 

Total number of people = 400

Number of people like tea = 400 ×  56/100 = 224

Answer: (b) Collecting, organizing, analyzing, and interpreting data