Quiz Space

Statistics for Data Science I · Qualifier · 7 Aug 2022 · May 2022 term

Question 8: The tax paid by 100 employees of a company is given in a …

Question 8

+3 marksOne or more correct options

The tax paid by 100 employees of a company is given in a dataset. If the tax details of 200 more employees are added to the same dataset, then which among the following about the range will hold true? (More than one option could be correct)

Select all that apply.

  1. A

    The value of the range of the new dataset can never be smaller than the value of the range of the previous dataset.

  2. B

    The range of the new dataset can be smaller than the range of the previous dataset.

  3. C

    The range of the new dataset will never exceed the range of the previous dataset.

  4. D

    There will always be some effect on the value of the range after adding the data of 200 more employees in the dataset.

Show answer

Correct answer

  • A

    The value of the range of the new dataset can never be smaller than the value of the range of the previous dataset.

Question 8 of 17 in the IIT Madras BS Statistics for Data Science I (Stats 1) Qualifier paper sat on 7 Aug 2022, in the May 2022 term (IIT M QUALIFIER EXAM QPE 07 Aug 2022 IBA NS). It carries 3 marks.

More questions from this paper

  1. Q1The age of the participants in a dance competition are plotted in a stem and leaf plot as shown in Figure 1.2.Q.
  2. Q2What is the value of population standard deviation of the first 2n natural numbers, i.e. 1, 2, 3, ..., 2n – 2, 2n – 1, …
  3. Q3In the last 5 innings of a school cricket tournament, Manish scored 2, 4, 10, 12, and 14 runs. The population mean and …
  4. Q4A free mega health checkup is conducted by a clinic at Olympia society. The systolic blood pressure (in mm Hg) of parti…
  5. Q5Consider various variables that describe the specifications of mobile phones in a store. These variables include the bra…
  6. Q6If mean, median, and mode of a numerical variable is the same, then:
  7. Q7Which of the following options represent(s) cross-sectional data? (More than one option could be correct.)
  8. Q9If the population standard deviation of the first 2n natural numbers (excluding zero) is s1, the population standard dev…
  9. Q10If there are two variables x and y, each having n data points, where each data point is obtained by xi = i, yi = n − i,…
  10. Q11The stem and leaf plot of the weights of 10 wrestlers is shown in Figure 1.1.Q. What is the mean weight (in kg) of the …
  11. Q12In an organization, the manager wants to find out the relation between gender and salary earned. He calculated the absol…
  12. Q13The histogram in Figure 1.4.Q represents the marks distribution of 50 students of college XYZ in their Statistics quiz.…
  13. Q14In a college, the gender distribution of college faculty is given as stacked bar chart in Figure 1.3.Q. There are three…
  14. Q15In a college, the gender distribution of college faculty is given as stacked bar chart in Figure 1.3.Q. There are three…
  15. Q16On the basis of the information given in Table 1.2.Q, select the correct statement(s) from the following:
  16. Q17Identify the correct stack bar chart representing the row relative frequencies of the type of delivery services from Ta…