Rating’s feedback as poor, good and excellent of 5 customers is collected in a shop. If feedback of two more customers are recorded, then choose the correct option(s).
(Assume initial data was bimodal)
New dataset will always be bimodal.
New dataset may change as unimodal.
Median of new dataset will always remain same.
Median of new dataset may change.
X contains observations of the bowling speed of a bowler and Y contains the observations of the bowling speed of another bowler, and it is noted that each observation of Y is 1.5 times each observation of X. If the sample variance of X is 30, then calculate the sample covariance between X and Y ?
45
1
30
0
Answer the given subquestions
If there are 12 ways to arrange n persons at a round table such that two particular person (say, ‘A’ and ‘B’) will sit together, then find the value on n.
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The IIT Madras BS Statistics for Data Science I (Stats 1) Quiz 2 paper sat on 20 Nov 2022, in the September 2022 term: 14 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 2 20 Nov 2022 at a glance |
|---|---|
| Term | September 2022 term |
| Subject | Statistics for Data Science I |
| Course code | BSMA1002 |
| Questions | 14 |
| Marks | 40 |
| Duration | 120 min |
| MSQ | 6 |
| MCQ | 2 |
| Numerical | 6 |
| Official paper | IIT M FOUNDATION AN2 EXAM QPF1 20 Nov 2022 |
| Negative marking | No negative marking. |
| Updated |
