Pre-Quiz - Basic Data Understanding

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Which of the following sets of scores has the greatest variability (range)?

2 points

2, 5, 8, 11

13, 13, 13, 13

20, 25, 26 ,27

42, 43, 44, 45

Clear selection

In a diagnostic test in mathematics given to students, the following marks (out of 100) are recorded: 46, 52, 48, 11, 41, 62, 53, 54, 96, 40, 98, 44. Which average will be a good representative of the above data?

1 point

Mean

Both Mean and Median

None of these

Median

Clear selection

[True or False] Standard deviation can be negative.

1 point

False

True

Sometimes True sometimes False

Clear selection

The median is always:

1 point

The most frequently occurring score in a data set

The middle score when results are ranked in order of magnitude

The same as the mean

The difference between the maximum and minimum scores.

Clear selection

Which of the following measures of central tendency will always change if a single value in the data changes?

1 point

All of these

Mode

Median

Mean

Clear selection

What data type is test_elements in this given Python code: test_elements = [46, 17, ‘SHALA’, 2020]

1 point

List

Dictionary

Array

Tuple

Clear selection

Which of these measures are used to analyze the central tendency of data?

1 point

Standard Deviation, Range and Mean

Mean, Median and Mode

Mean and Normal Distribution

Median, Range and Normal Distribution

Clear selection

Which of these statements is/are true about the pie chart?

2 points

The total value of a pie chart is always 100 (just as a percentage).

A pie chart not only represents frequency but also numerical proportion.

A pie chart or a pie graph is a circular representation of data.

Each section of a pie chart is the proportionate quantity of the whole data.

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