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Arjun picks one ball without looking from the bag shown. What is the probability that the ball is NOT green?

Class 8Data HandlingData Handling
  • A1/3
  • B5/12
  • C2/3
  • D1/2

Step-by-Step Solution

Count from the picture: 5 red, 3 blue, 4 green — 12 balls. Not green , so .
Answer: C) 2/3

Key idea: Histograms — bars that touch

A histogram is a bar graph for **grouped** data:

- The -axis shows class intervals (continuous, so bars TOUCH).
- The -axis shows frequency.
- Bar widths are equal (one per class).
- Bar height = frequency of that class.

Difference from a regular bar graph: bar graphs separate distinct categories with gaps; histograms show continuous data with no gaps.

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