BKSB Data and Statistical Interpretation Questions and Answers

Question 1

A call centre agent handles the following number of calls each day from Monday to Friday: 25, 30, 22, 28, 25. What is the mean (average) number of calls handled per day?

Accepted Answer

26 calls

Answer

28 calls

Answer

25 calls

Answer

30 calls

Question 2

The table below shows the number of faulty items found during quality checks on a production line over one week. On which day was the number of faulty items highest?

| Day       | Faulty Items |
|-----------|--------------|
| Monday    | 12           |
| Tuesday   | 8            |
| Wednesday | 15           |
| Thursday  | 9            |
| Friday    | 11           |

Accepted Answer

Wednesday

Answer

Monday

Answer

Friday

Answer

Tuesday

Question 3

The daily temperatures (°C) recorded for a city over a week were: 14, 17, 13, 16, 18, 13, 15. What is the range of the temperatures?

Accepted Answer

5°C

Answer

13°C

Answer

18°C

Answer

3°C

Question 4

A line graph is used to show a company's sales figures over the last four quarters. The line on the graph starts low in Q1, rises sharply in Q2, dips slightly in Q3, and then rises again in Q4 to its highest point. Which of the following statements best describes the overall trend?

Accepted Answer

Sales are generally increasing.

Answer

Sales are consistently decreasing.

Answer

Sales remained the same.

Answer

Sales were highest in Q1.

Question 5

Which of the following data sets is best represented by a pie chart?

Accepted Answer

The different eye colours of students in a class, shown as percentages of the total.

Answer

The number of cars sold by a dealership each month for a year.

Answer

The daily temperature changes during a week.

Answer

The height of a plant as it grows over several weeks.

Question 6

A survey asked 50 people about their preferred type of holiday. The results are shown in the bar chart below.

Beach: 25
City Break: 15
Adventure: 10

How many more people chose a Beach holiday than a City Break?

Accepted Answer

10

Answer

15

Answer

25

Answer

5

A call centre agent handles the following number of calls each day from Monday to Friday: 25, 30, 22, 28, 25.What is the mean (average) number of calls handled per day?

A call centre agent handles the following number of calls each day from Monday to Friday: 25, 30, 22, 28, 25.
What is the mean (average) number of calls handled per day?