Question

heights of statistics students were obtained by a teacher as part of an experiment conducted for the class. the last digit of those heights are listed below. construct a frequency distribution with 10 classes. based on the distribution, do the heights appear to be reported or actually measured? what can be said about the accuracy of the results? 000000000012344455555555668889
complete the frequency distribution below.

last digit	frequency	last digit	frequency
1	1	6	2
2	2	7	0
3	1	8	3
4	3	9	1

(type integers or decimals.)
based on the distribution, do the heights appear to be reported or actually measured?
a. the heights appear to be actually measured because the distribution is uniform.
b. the heights appear to be reported because there are disproportionately more 0s and 5s.
c. the heights appear to be reported because the distribution is uniform.
d. the heights appear to be actually measured because there are disproportionately more 0s and 5s.
what can be said about the accuracy of the results?
a. they are likely accurate because they appear to be actually measured.
b. they are likely accurate because they appear to be reported.
c. they are likely not very accurate because they appear to be actually measured.
d. they are likely not very accurate because they appear to be reported.

Explanation:

Step1: Analyze frequency distribution

We observe that the frequency of last - digit 0 is 9 and of 5 is 9, which are much higher than frequencies of other digits. In a set of actually - measured data, we would expect a more even distribution of last digits.

Step2: Determine if reported or measured

When data is reported, people tend to round numbers, resulting in more 0s and 5s. So, the heights appear to be reported.

Step3: Evaluate accuracy

Since the data seems to be reported (due to the disproportionate number of 0s and 5s), the accuracy is likely not very high as reported data is often rounded and less precise.

Answer:

Based on the distribution, the answer to "do the heights appear to be reported or actually measured?" is B. The heights appear to be reported because there are disproportionately more 0s and 5s.
The answer to "What can be said about the accuracy of the results?" is D. They are likely not very accurate because they appear to be reported.