In a histogram, the bar for the class has height on the frequency density axis. How many items are in that class?
Answer and explanation
Correct answer: D.
- Step 1: Frequency frequency density class width.
- Step 2: Class width , so frequency .
Answer
.
Why not the others: : multiplies the density by instead of by the class width of . : reads the height as the frequency. : divides the density by the class width.
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