Question

Time t (seconds) 0 < t < 10 11 10 < t < 15 20 15 < t < 23 12 a) What is the class width of the 15 < t < 23 class? Frequency Frequency density 1.1 4 b) Use the following formula to calculate the frequency density of the 15 < t < 23 class. frequency density frequency class width

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Answer 1

An

swer:

Step-by-step explanation:the answer is 1.1

Answer 2

The class width of the 15 < t < 23 class is 8. The frequency density of the 15 < t < 23 class is 0.1375.

Step-by-step explanation:

The class width of the 15 < t < 23 class can be calculated by subtracting the lower class boundary from the upper class boundary. In this case, the lower class boundary is 15 and the upper class boundary is 23. Therefore, the class width is 23 - 15 = 8.

To calculate the frequency density of the 15 < t < 23 class, you can use the formula:

frequency density = frequency / class width

Substituting the given values:

frequency = 1.1

class width = 8

frequency density = 1.1 / 8 = 0.1375