Statistics for Data Science I Quiz 1: 13 July 2025 (May 2025 term)

1. A

   The mean will increase, but the median will remain the same.

2. B

   Both the mean and median will increase, but mode will stay unchanged.

3. C

   All three measures (mean, median, and mode) will increase.

4. D

   Only mode will increase.

Select all that apply.

1. A

   BMI is a continuous variable.

2. B

   The variable “Smoker” is ordinal in nature.

3. C

   Drawing conclusions about the smoking habits of the entire city based on this sample is an application of descriptive statistics.

4. D

   P104 represents a case.

Select all that apply.

1. A

   The roll number of a student is an example of an ordinal variable.

2. B

   A histogram is an appropriate graph to display the counts of shirts based on their colours.

3. C

   Recording the number of customers served by different restaurants in a city on a particular day is an example of cross-sectional data.

4. D

   The battery life (in hours) of a laptop is a numerical and continuous variable.