2. Describing Data with Tables and Graphs

Which of the following best describes the difference between $\mathrm{relative} \mathrm{frequency}$ and $\mathrm{cumulative} \mathrm{frequency}$ in a $\mathrm{frequency} \mathrm{distribution}$?

Which of the following statements about frequency tables and frequency distributions is correct?

Suppose a frequency distribution table shows the following frequencies for four classes: class a: 5, class b: 8, class c: 7, and class d: 10. What is the relative frequency of class d?

Construct a frequency distribution for the data set using the indicated number of classes. In the table, include the midpoints, relative frequencies, and cumulative frequencies. Which class has the greatest class frequency and which has the least class frequency.

Textbook Spending

Number of classes: 6

Data set: Amounts (in dollars) spent on textbooks for a semester 91 472 279 249 530 376 188 341 266 199 142 273 189 130 489 266 248 101 375 486 190 398 188 269 43 30 127 354 84 319

In a relative frequency distribution, what does each $\mathrm{relative\; frequency}$ represent?

In a frequency distribution, the width of each interval is generally the same for each interval. What is this property called?

Which of the following is not a property of the $F$ distribution?

Which type of frequency distribution graph is most appropriate for displaying data measured on a $nominal$ scale?

In the context of frequency distributions, what is the main difference between class limits and class boundaries?

use the ogive to approximate

the number in the sample.

Given the following partial relative frequency distribution for a set of data: Category A: $0.25$, Category B: $0.40$, Category C: $0.20$. What is the relative frequency for Category D if these are the only categories?

Which of the following best describes the difference between a $\mathrm{frequency} \mathrm{polygon}$ and an $\mathrm{ogive}$ in $\mathrm{frequency} \mathrm{distributions}$?

Use the ogive to approximate the

the number of black bears that weigh between 158.5 pounds and 244.5 pounds.

Given a frequency distribution of response times grouped into intervals, which interval accounts for the lowest percentage of response times?