Which of the following best describes a key difference between a histogram and a bar graph?

The histogram to the right represents the weights $w$ (in kilograms $\mathrm{kg}$) of a group of students. Which of the following statements is most likely true about the distribution of weights shown in the histogram?

If a histogram has most of its data concentrated in a few bins with very little data in the other bins, what can be concluded about the $spread$ of the histogram?

In a probability histogram, there is a correspondence between —.

Suppose you have two histograms, Histogram A and Histogram B, each displaying the distribution of exam scores for two different classes. Histogram A shows scores tightly clustered around the mean $\mu$, while Histogram B shows scores spread out over a wider range. Which histogram depicts a higher standard deviation $\sigma$?

Which of the following is the best way to describe the data shown in a histogram?

Suppose a histogram displays data grouped into the following classes: $10-14$, $15-19$, $20-24$, $25-29$. Based on this histogram, what is the class width?

Suppose you are given a histogram with class intervals $0-10$, $10-20$, $20-30$, and $30-40$, and the frequencies for these intervals are $5$, $12$, $18$, and $10$, respectively. What is the frequency of the modal class (the class with the most observations)?

Which of the following traits do histograms, Pareto charts, and scatter plots have in common?