Question

construct a histogram from the frequency distribution. does the result appear to approximate a normal distribution? why or why not?
voltage (volt) frequency
123.3 - 123.4 10
123.5 - 123.6 9
123.7 - 123.8 10
123.9 - 124.0 10
124.1 - 124.2 1
40
(1 point)
yes, the voltages appear to follow a normal distribution; the values are not concentrated near the ends of the distribution.
no, the voltages do not appear to follow a normal distribution; instead of being concentrated near the middle of the distribution, the values appear to be rather evenly distributed.
no, the voltages do not appear to follow a normal distribution; instead of being concentrated near the ends of the distribution, the values appear to be rather evenly distributed.
yes, the voltages appear to follow a normal distribution; the values appear to be rather evenly distributed.

Explanation:

A normal distribution has values concentrated near the middle. In the given frequency - distribution, the frequencies are rather evenly spread across the intervals instead of being concentrated in the middle. So, it does not approximate a normal distribution.

Answer:

No, the voltages do not appear to follow a normal distribution; instead of being concentrated near the middle of the distribution, the values appear to be rather evenly distributed.