rsdom

Question 1

How would you allocate the signs

Answer 1

1. Look at the left hand statement, if it is true does the right hand statement also become true if so then (=>)
2. Look at the right hand statements, if it is true does the left hand statement also become true (<=)
   If both then <=>

Question 2

What is some of the mathematical language used in implications?

Answer 2

Question 3

What is the converse of a therom?

Answer 3

The opposite of a theorem

Therom = A implies B
Converse of Theorem = Does B imply A ?

Question 4

what are the different types of proof?

Answer 4

• deuction: show the logical steps- normally iincolves algebra
• counter argument : show 1 example that does not follow the conjecture
• exhaution: trying out all the possibilities

Question 5

Proof by deduction

Answer 5

Question 6

Proof by deduction

Answer 6

Question 7

Exam Tip

Answer 7

ALWAYS write a conclusion at the end (therefore ….repeat the question)

Question 8

What are the different types of data?

Answer 8

Question 9

Which type of data is the following

Answer 9

Question 10

How do you conduct linear interpolation?

Answer 10

Question 11

How would you compare or describe a data set?

Answer 11

Measures of central tendency Describe the centre of data.
Measures of spread suggest how consistent the data is

Question 12

What would you consider an outlier (using IQR)?

Answer 12

Anything that is more than 1.5 × IQR

Question 13

What would you do when there at gaps between each interval

Answer 13

Question 14

What is the notation for mean?

Answer 14

Question 15

How do you calculate the mean on your calculator?

Question 16

Plot these values into the calculator to find mode mean and median

Answer 16

Because there are two columns, make sure you tell it that the frequency column is list 2

Question 17

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Question 18

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Question 19

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Question 20

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Question 22

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Question 23

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Question 24

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Question 25

Answer 25