Everything Maths Grade 10

DEFINITION: Quartiles The quartiles are the three data values that divide an ordered data set into four groups, where each group ...

Deciles The deciles are the nine data values that divide an ordered data set into ten groups, where each group contains an equal ...

Step 2: Find the quartiles Since the data have been grouped, they have also already been sorted. Using the percentile formula an ...

Exercise 10 – 5: 1.A group of 15 learners count the number of sweets they each have. This is the data they collect: 4 11 14 7 14 ...

The box-and-whisker plot shows these five percentiles as in the figure below. The box shows the interquartile range (the distanc ...

This provides the five number summary of the data set and allows us to draw the following box-and-whisker plot. 1 ; 25 2 ; 5 3 ; ...

10.6 Chapter summary EMA7D See presentation:2GNKatwww.everythingmaths.co.za Data refer to the pieces of information that have b ...

End of chapter Exercise 10 – 7: 1.The following data set of heights was collected from a class of learners. f1,70 m;1,41 m;1,60 ...

12.A group of 20 learners count the number of playing cards they each have. This is the data they collect: 12 1 5 4 17 14 7 5 1 ...

1 2 3 4 5 6 7 8 9 0-1 A 2-3 B 4-5 C 6-7 D 8-9 E number of sweets y The data set below shows the correct information for the numb ...

17.A group of learners count the number of marbles they each have. This is a histogram describing the data they collected: 1 2 3 ...

a)Which measure of central tendency should be used for this information? b)Calculate the measure of central tendency that you ch ...

24.The stem-and-leaf diagram below indicates the pulse rate per minute of ten Grade 10 learners. 7 8 8 1 3 5 5 9 0 1 1 10 3 5 Ke ...

c)Find the mean age of the men in the factory using the original data. 29.The example below shows a comparison of the amount of ...

CHAPTER 11 Trigonometry 11.1 Two-dimensional problems 390 11.2 Chapter summary 397 ...

11 Trigonometry Trigonometry was developed in ancient civilisations to solve practical problems such as building construction an ...

In this diagram is the angle of depression. DEFINITION: Angle of depression The angle of depression is the angle formed by the l ...

Worked example 1: Flying a kite QUESTION Mandla flies a kite on a 17 m string at an inclination of 63°. 1.What is the height,h, ...

Worked example 2: Calculating angles QUESTION ABCDis a trapezium withAB=4 cm,CD=6 cm,BC=5 cm andAD=5 cm. PointEon diagonalAC div ...

Step 5: Calculate the sum of the angles ABC^ =48,6°+58,1°=106,7° Another application is using trigonometry to find the height of ...