Term 2Week 1-2; DS2 – Chapter 7 – Statistics – Displaying Data (Frequency Tables, Different Graphs types)Week 3,5; DS3 – Chapter 11 – Summary Statistics (Mean, Mode, Median, Range, more Graph types) Week 4 - HY ExamWeek 6-7; PB1 – Chapter 8 – ProbabilityWeek 8-9; FSCo2 – Chapter 14 – Maths in Communication (Mobile Phones; Data plans)

Term 2 – Looking back

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You need to turn to p473 for parts (c) to (e); we will do these on the next slide, so

skip to (f)

Looking at the

increments, calls are

charged by 30 sec

increments

A fairly simple

Exercise 14A

(p473)

Q1,2,3

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The question you need to ask is, “How

many 30 second

intervals are included in each call?”

To do: Exercise 14B(p476-478)

Q2,4,6,8,10,12,14,16,18*

To do: Exercise 14C (p480-481)Q2,3,5,7,9

As you have done Step Graphs & Radar Charts before, then do

Exercise 14D Q1,3,5,11,12* * get a radar chart template from teacher or do in

Excel

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Scientific (or standard) notation is a convenient way of writing large and small numbers.Numbers in scientific notation have two parts:

• A number between 1 and 10• A power of 10

 To Write Numbers In Scientific Notation• Move the decimal point to make a number between 1 and 10• Count the number of places from the new decimal point to

the old one (to the right means a positive power, to the left means a negative power).

  eg. 14 000 = 14 104, 432 000 = 432 105, 00000342 = 342 10-5

Examples1. Write the following numbers in scientific notation.

(a) 70 000 = (b) 8430 =  2. Write the basic numeral for:

(a) 3 104 = (b)365 106 =3. Write in scientific notation.

(a) 00004 = (b) 00004321 =4. Write as a basic numeral:

(a) 45 10-4 = (b)528 10-2 =

= 7 104

= 8.43 104

= 30 000

= 3 650 000

= 4 10-4

= 4.321 10-4

= 0.000 45 = 0.052 8

Summarise the notes and

Examples.

Do Exercise 14F (p492-

493) Q2,4,5,7,9,10

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