MathsStatistic II

Chapter 4Statistic II

MeanModeMedian

AverageGreatest (Most, Paling Banyak)Middle

AGM!!!

1. Diagram shows a pie chart which shows the number of members of three clubs of a school.a) Calculate the angle of the sector representing Chess club.b) If the total number of the three clubs is 1080, find the total members of Debate club.

2. Pie chart below shows the expenses of Irzhans monthly salary. Given that Irzhan spend RM 800 for food monthly. Find Irzhans monthly salary and the amount he gave to his parents and family.

3. The pie chart shows the books available in PaPola. Find the value of x in degree.

4. Table shows the number of phones according to different kind of brand sold in a shop. Given that the angle of the sector for Sony is . Please find the number of phone sold for Xiaomi and draw a pie chart to represent the following information. BrandNumber of phones sold

Samsung60

Iphone80

Sony25

Xiaomix

5. The following pie chart shows the colour which the students from SMK DD likes. Given that the total number of students who likes blue colour is 120 and the students who likes black is 320. Find the total number of students in SMK DD and the value of x in degree.

6. Find the mean, mode and median for the followings.a) 1, 3, 5, 6, 2, 3, 3, 1, 2

b) 4, 3, 4, 4, 2, 1, 5, 6

c) 12, 15, 10, 13, 12, 11, 14

d) 8, 9, 5, 4, 4, 9, 8, 9, 7, 9

e) 35, 42, 37, 40, 40, 28, 27

f) 18, 17, 17, 19, 22, 22, 17

7. Find the mean, mode and median for the followings.a) Scores12345

Frequency53732

b) Scores1011121314

Frequency33522

c) Scores02468

Frequency17534

d) Scores1020304050

Frequency453612

8. Table below shows the number of goals scored in a game and their corresponding frequency for the whole season. Given that the mode is 2, find the possible numbers for x.Goals0123>3

Frequency12x16710

9. We collected a set of data, 1, 4, x, 1, 4, 3, 1, 7, 8. We lost one of the value but we know the mean for this set of data is 3.5. Help us find the missing digit (x).

10. A set of data is arranged ascending order. 1, 3, x, 7, y, 12, 13. Given that the median and mode for this set of data is 9 and 7. Find the mean of this set of data.

11. A set of data is arranged descending order. 52, 52, 51, 50, x, 48, 43, 43, y. Given that the median and mode for this set of data is 49 and 43. Find the mean of this set of data.

12. The mean of a set of 12 numbers 12.5. When a number x is added into the set, the new mean is 13.2. Find the value of x.

13. The mean of a set of 25 numbers 22.3. When a number x is added into the set, the new mean is 20.12. Find the value of x.

14. There is a set of data. 3, 5, 2, 2, 6, 7, 6, x. Given that the set has 6 as mode and . Find the possible values of x.

15. 3, 4, 4, 6, x, 10, 5. The mode of the set of data is 4. Find the value of x and calculate the mean.

16. Table below shows the number of students in Powerclass from 2010-2015. Given the mean of the number of students is 15. Find the value of x.Year201020112012201320142015

Number of students841215x30

17. The mean of 12 numbers is 8. When a number, x is added to the group the mean become 9. Find the value of x.

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