- A1/2
- B5/6
- C1/3
- D2/3
Step-by-Step Solution
The faces are 1, 2, 2, 3, 5, 6. Prime numbers: 2, 2, 3, 5 — 4 of the 6 faces (1 is not prime). .
Answer: D) 2/3
A special die is made by folding the net shown, so its faces show these dots. The die is rolled once. What is the probability of getting a prime number?
Class 8Data HandlingData Handling
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.
- 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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