Question

Here's a dot plot showing the daily high temperature of Edgeton, Iowa in July.
A dot plot has a horizontal axis labeled, Temperature (degrees Celsius), from 18 to 26, in increments of 1. The number of dots above each temperature value is as follows. 19, 1; 20, 2; 21, 7; 22, 9; 23, 6; 24, 3; 25, 1.
\[18\]
\[19\]
\[20\]
\[21\]
\[22\]
\[23\]
\[24\]
\[25\]
\[26\]
\[\text{Temperature }(\degree\text{C})\]
Which of these best describes the shape of the distribution?
Choose 1 answer:
A
Roughly symmetric
B
Skewed left
C
Skewed right

Answer 1

A — Roughly symmetric.

The counts are centered near 22°C (the highest bar) and the totals on either side are about equal (10 observations below 22 and 10 above), with similar tapering on both sides.