Edexcel IAL S1 Representation of Data

Edexcel IAL S1 Representation of Data

-Identify the skew of a set of data

-Represent data in a Stem and Leaf Diagram

-Represent data in a Box Plot

-Construct and Read data from a Histogram

Think before you type!

​

Fill in the Blank

What is the median?

Fill in the Blank

What is the interquartile range?

Fill in the Blank

What is the scale factor of enlargement?

Fill in the Blank

What is b?

Fill in the Blank

What is the scale factor of enlargement?

Fill in the Blank

What is c?

Multiple Choice

How do you think the salaries of adults in Dubai will be skewed?

• Positive

• Negative

• No Skew

Multiple Choice

How do you think the IQ of a random group of people will be skewed?

• Positive

• Negative

• No Skew

Multiple Choice

How do you think the heights of a random group of people will be skewed?

• Positive

• Negative

• No Skew

Multiple Choice

How do you think the age at which people retire will be skewed?

• Positive

• Negative

• No Skew

Skewness

Multiple Choice

Describe the skew

Mean= 55.48

Median= 56

• Positive

• Negative

• No Skew

Multiple Choice

Describe the skew

Mean= 5

Median= 4

• Positive

• Negative

• No Skew

Multiple Choice

Describe the skew

Mean= 5.71

Median= 5.72

• Positive

• Negative

• No Skew

Multiple Choice

Describe the skew

Mean= 3.2

Median= 3.5

• Positive

• Negative

• No Skew

Multiple Choice

Describe the skew

Mean= 8.91

Median= 8.78

• Positive

• Negative

• No Skew

Multiple Choice

Describe the skew

Q1= 8.5

Q2= 13

Q3= 21

• Positive

• Negative

• No Skew

Multiple Choice

Describe the skew

Q1= 3

Q2= 5

Q3= 6

• Positive

• Negative

• No Skew

Multiple Choice

Describe the skew

Q1= 3

Q2= 5

Q3= 8

• Positive

• Negative

• No Skew

Multiple Choice

Describe the skew

Q1= 6.6

Q2= 7.7

Q3= 8.8

• Positive

• Negative

• No Skew

Multiple Choice

Describe the skew

Q1= 4.7

Q2= 7.1

Q3= 7.3

• Positive

• Negative

• No Skew

Fill in the Blank

What is the mean of

£3 , £3.50, £4, £7, £100

Fill in the Blank

What is the median of

£3 , £3.50, £4, £7, £100

Fill in the Blank

What is the standard deviation of

£3 , £3.50, £4, £7, £100

Fill in the Blank

What is the value of the skew of

£3 , £3.50, £4, £7, £100

Multiple Choice

What is the mode?

• 4.7

• 3.6

• 4.05

Multiple Choice

What is the Skew?

• Positive

• Negative

• No Skew

Open Ended

Give a comparison between the two box plots

Multiple Choice

What are the two missing Frequency Densities?

• 4 and 1.2

• 0.25 and 1.2

• 40 and 6

• 4 and 12

Multiple Choice

What are the two missing Frequencies?

• 26 and 5

• 26 and 10

• 52 and 10

• 52 and 5

Multiple Choice

What are the frequencies of the bars from left to right?

• 15, 20, 40, 25

• 10, 30, 40, 55

• 15, 30, 40, 25

• 10, 20, 50, 25