A researcher wants to investigate the relationship between studying hours and exam scores. He collects the data on studying hours and exam scores from a sample of 100 students and perform a correlation analysis. Which branch of statistics does this analysis belong to?
Descriptive Statistics.
Inferential Statistics.
Both Descriptive and Inferential Statistics.
Neither Descriptive nor Inferential Statistics.
It is a time series Data.
It is a cross sectional Data.
It is a structured Data.
It is an unstructured Data.
Which of the following is/are correct?
Mean and Mode can only be defined for a numerical data.
Mode can be defined for a categorical data.
There can be more than one mode for a data.
Median can be measured for a categorical variable only if the variable is nominal.
The sum of relative frequencies of all the observations in a given data set is always equal to 1.
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The IIT Madras BS Statistics for Data Science I (Stats 1) Quiz 1 paper sat on 16 Jul 2023, in the May 2023 term: 15 questions for 40 marks in 120 minutes. The first 3 questions are below. Sign in with Google — it is free — to see the whole paper with its answers and explanations, in learning mode or as a timed mock test.
| Feature | Stats 1 Quiz 1 16 Jul 2023 at a glance |
|---|---|
| Term | May 2023 term |
| Subject | Statistics for Data Science I |
| Course code | BSMA1002 |
| Questions | 15 |
| Marks | 40 |
| Duration | 120 min |
| MCQ | 3 |
| MSQ | 6 |
| Numerical | 6 |
| Official paper | IIT M FOUNDATION AN2 EXAM QPF2 16 JULY 2023 |
| Negative marking | No negative marking. |
| Updated |
