Question

Minitab was used to generate the following histogram:

a. Is this a frequency histogram or a relative frequency histogram? Explain.

b. How many measurement classes were used in the construction of this histogram?

c. How many measurements are in the data set described by this histogram?

Short answer

a.) Frequency histogram.

b.) 13 classes.

c.) 49 measurements.

Step-by-step solution

(a) Frequency histogram

Afrequency histogram is a form of bar chart that displays the frequency and number of occurrences of a result in a data collection. A graph displays frequencies using vertical columns (the number of times each score appears).

(b) Measurement classes

There are13 classes, similar to some bars.

(c) Measurement data set of histograms

The height of each bar can count the number of measurements:

$$\begin{gathered} \text{= 1 + 3 + 2 + 3 + 4 + 7 + 11 + 6 + 2 + 3 + 3 + 2 + 1 + 1}\backslash \mathrm{hfill} \\ \text{= 49} \end{gathered}$$