1) In a cricket match, batsmen scored runs in multiples of 5.

Bar graph shows:

What is the average runs?

2) A 🏫 class of 25 👩‍🎓👨‍🎓 students took a test.

The average score was 72.

10 new 👩‍🎓👨‍🎓 students joined and the new average became 74.

What was the total score of the 10 new 👩‍🎓👨‍🎓 students?

3) 100 👩‍🎓👨‍🎓 students answered a quiz and result is as follows.

What is the median range of scores?

4) A 📋 table shows number of chocolates sold by 4 shops:

Which shop sold more than the average?

5) 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?

6) A 📊 bar graph contains the number of ✏️ pencils used by 6 👩‍🎓👨‍🎓 students:

2

If a new student used 7 ✏️ pencils, how does the mean change?

7) 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?

8) 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?

9) 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?

10) The number of toffees in 30 gift packs are given as follows:

5, 6, 4, 5, 3, 4, 4, 2, 5, 4, 1, 2, 11, 9, 2, 5, 4, 8, 7, 6, 5, 1, 2, 5, 7, 8, 1, 9, 7, 8

Find the average number of toffees in gift Packs.

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

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

13) The ages of 10 children are:

9, 11, 12, 8, 10, 9, 13, 12, 11, 10.

If one child’s wrong entry (13) was corrected to 7, what is the new mean age?

14) Consider the weights (in kg) of 8 students:

32, 45, 38, 32, 40, 36, 45, 39

What is the correct order from least to greatest?

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) A 📋 table shows test marks along with frequency:

What is the mean mark?

17) A rainfall graph shows values over 6 months (in mm):

If the wettest month’s rainfall increases by 20%, what’s the new average?

18) A school records absentees:

What is the median number of absentees?

19) If 10 students scored marks:

10, 20, 30, …, 100, what is the range?

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