Everything Maths Grade 10

End of chapter Exercise 9 – 7: 1.An amount of R 6330 is invested in a savings account which pays simple interest at a rate of 11 ...

17.Bianca has R 1450 to invest for 3 years. Bank A offers a savings account which pays simple interest at a rate of 11% per annu ...

25.Bonnie bought a stove for R 3750. After 3 years she had finished paying for it and the R 956,25 interest that was charged for ...

He then looks up the current exchange rates and finds the following information: R 1=0,26 PEN 1 BRL=1,17 PEN In Peru he spends 2 ...

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CHAPTER^10 Statistics 10.1 Collecting data 356 10.2 Measures of central tendency 358 10.3 Grouping data 365 10.4 Measures of dis ...

10 Statistics When running an experiment or conducting a survey we can potentially end up with many hundreds, thousands or even ...

the distance travelled by a car, or the duration of a phone call. DEFINITION: Qualitative data Qualitative data are data that ca ...

Worked example 2: Qualitative and quantitative data QUESTION Thembisile would like to know who the most popular cellular provide ...

The mean is sometimes also called the average or the arithmetic mean. Worked example 3: Calculating the mean QUESTION What is th ...

Step 2: Find the number in the middle There are 7 values in the data set. Since there are an odd number of values, the median wi ...

Worked example 6: Finding the mode QUESTION Find the mode of the data setf2; 2; 3; 4; 4; 4; 6; 6; 7; 8; 8; 10; 10g. SOLUTION Ste ...

SOLUTION Step 1: Qualitative or quantitative? Since each mass can be represented by a number, the data set is quantitative. Furt ...

DEFINITION: Outlier An outlier is a value in the data set that is not typical of the rest of the set. It is usually a value that ...

In general, the median is less affected by the addition of outliers to a data set than the mean is. This is important because it ...

10.3 Grouping data EMA74 A common way of handling continuous quantitative data is to subdivide the full range of values into a f ...

130 140 150 160 170 180 1 2 3 4 5 6 7 8 9 Count Height (m) The histogram makes it easy to see in which range most of the heights ...

1 2 3 4 5 6 0-2 3-5 6-8 9-11 12-15 number of stones y Count the number of stones in the following range: 0number of stones 2 3 ...

6.A group of 20 learners count the number of stones they each have. The learners draw a histogram describing the data they colle ...

8.A group of learners count the number of stones they each have. This is a histogram describing the data they collected: 1 2 3 4 ...