1. Which of the following is never possible for variance?
- Zero variance
- larger than the standard deviation
- Negative variance
- smaller than the standard deviation
Answer :- c
2. def m(data)
Diff = max(data) – min(data)
return(Diff)
The above defined data function in Python programming, will calculate the?
- Inter quartile range
- mode
- median
- range
Answer :- d
3. Bar Charts are used for :
- Continuous data
- Categorical data
- both a. and b.
- None of these
Answer :- a
4. Frequency polygons are used for:
- Continuous data
- Categorical data
- both a. and b.
- None of the above
Answer :- a
5. u is an example of which of the following?
- A population parameter
- sample statistic
- population variance
- mode
Answer :- a
6. Consider the following statements-
Statement A : To “flatten” the dataframe, you can use the reset_index().
Statement B : Use the nunique() to get counts of unique values on a Pandas Series.
- Both statements are correct
- Both statements are false
- A is correct, B is false
- B is correct, A is false
Answer :- a
7. Which of the following statements in context of drawing an excellent graph is false:
- The graph should not contain unnecessary adornments (sometimes referred to as chart junk)
- The scale on the vertical axis should begin at zero
- All axes should not be properly labelled
- The graph should contain a title
Answer :- c
8. Which of the following is not a measure of dispersion?
- Skewness
- Kurtosis
- Range
- Percentile
Answer :- d
9. Assume, you are given two lists:
a = [1,2,3,4,5]
b = [6,7,8,9]
The task is to create a list which has all the elements of a and b in one dimension.
Output:
a = [1,2,3,4,5,6,7,8,9]
Which of the following option would you choose?
- a.append(b)
- a.extend(b)
- Any of the above
- None of these
Answer :- a
10. State the following true or false?
Statement: Bimodal Data sets contains more than two modes
- True
- False
Answer :- b