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IITM BS Week 4 Statistics 1 Questions | Prasnya
Statistics 1 > Week 4
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6Q
01
The time students spend studying and their scores on an exam are shown in Table 2. Which of the following option(s) is/are correct?
Multiple correct
HARD
4 marks
10 May 2026
02
Based on the information given in Table 3, choose the correct option regarding the correlation coefficient (r) between hours studied and test scores of five students.
Single correct
HARD
4 marks
21 December 2025
03
What proportion of the total customers prefer digital payments? Enter the answer correct to two decimal places.
Comprehension
EASY
2 marks
13 April 2025
04
How many customers of age between 18 to 45 prefer cash payment?
Comprehension
EASY
1 marks
13 April 2025
05
Let r be the sample correlation coefficient for the data pairs (x_i, y_i), i = 1, 2, ..., n. Then, find the sample correlation coefficient for the data pairs (a + bx_i, c + dy_i), i = 1, 2, ..., n, provided that b and d have the same sign.
Single correct
EASY
3 marks
01 September 2024
06
Find the correlation coefficient between X and Y for the dataset given in Table Q.1.
Numerical
MEDIUM
3 marks
03 September 2023
Showing 6 questions.
Complete question index for this section:
Question 1 (multiple):
Question 2 (single):
Question 3 (comprehension):
Question 4 (comprehension):
Question 5 (single):
Question 6 (integer):
