1) If there are 80 students, how many like chocolate?

2) A 👩‍🎓👨‍🎓 student reads 20, 25, 30, 35, 40 pages over 5 days.

If the number of pages on Day 2 doubles and Day 4 reduces by 10, what is the new average?

3) In a ✅ tally chart, the number of books read in 5 weeks

If Week 3 data was wrongly recorded as 15 instead of 18, what is the correct average?

4) In 2018, what is the difference between the number of students who opted for Mathematics and those who opted for Hindi?

5) A spinner has 5 equal sections numbered 1 to 5.

What is the probability of getting an even number?

6) If a set of numbers has only one element repeated and all others are unique, then:

7) In which year did the player score the highest number of goals?

8) A teacher recorded these marks:

80, 85, 90, 75, 80, 95, 80, 85, 80, 90.

Which number is the mode, and how many more 👩‍🎓👨‍🎓 students got that score than the least common score?

9) If 2 is added to every number in the data set {5, 6, 7}, what happens to the range?

10) A dice is rolled once.

What is the probability of getting a number greater than 4?

11) A bag contains 5 blue gems, 8 red gems and 2 green gems.

A gem is drawn at random, what is the probability of getting a blue gem?

12) The mean of 8 numbers is 30.
The mean of the first five numbers is 24, and the mean of the last four numbers is 40.
What is the fifth number?

13) The ages (in years) of 10 employees are:

22, 25, 28, 25, 30, 26, 28, 24, 25, 32

Find the mean, mode and median respectively.

14) A fruit seller sold mangoes 🥭 for 7 days:

48, 52, 64, 60, 72, 68, 56.

What is the difference between the average sale and the median sale?

15) A data set has a mean of 25 and consists of 5 elements.

One number is unknown and others are 20, 25, 30, 22.

What is the unknown number?

16) What is the average number of goals scored by the player over the five years?

17) In which year was the highest total number of students (Hindi + English + Mathematics) recorded?

18) Find the sum of the mode and the median of the data:

18, 25, 22, 25, 30, 18, 25, 20, 22, 18, 25, 28

19) If the mode of a dataset is 9, which statement is true?

20) A 📊 bar graph shows visitors in a park:

If the average number of visitors per day is taken, what is exactly 10 more than the average?