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Exercise
Solved Questions
SECTION A (Objective Type Questions)
uiz
A. Tick ( ) the correct option.
1. Which of the following provides a graphical representation for quick comparison of quantities in various categories?
a. Pie Chart b. Bar graph
c. Line chart d. Scatter plot
2. Which of the following is NOT a source of structured data?
a. Excel file b. DBMS
c. Online Forms d. Audio files
3. “Pollution is effecting my health” Identify the type of correlation in this statement.
a. No correlation b. Positive correlation
c. Negative correlation d. Either b or c
4. The easiest way to verify if the data is categorical or numeric is to compute the .
a. average b. sum
c. count d. maximum of all values
5. Identify the type of distribution in the following graph:
a. Right-skewed
b. Left-skewed
c. Symmetric
d. Unimodal
6. Identify the type of peak in the following histogram:
12 –3 –2 –1 0 1 2 3
Average = 81
10
8
6
4
2
0
70 72 74 76 78 80 82 84 86 88 90 92 94
a. unimodal b. bimodal
c. multimodal d. None of these
7. IQ Score (intelligence scale) is which kind of level of measurement?
a. Nominal b. Ordinal
c. Ratio d. Interval
Data Analysis (Computational Thinking) 265

