Transcript qts numeracy: stats overview

QTS Numeracy Skills Test
On-screen questions – topics
Play as slideshow in PowerPoint
On-screen calculator
Mean, Mode, Median
Bar charts
Cumulative frequency
Box and whisker diagrams
Conversions
Formulae
Fractions and Proportion
Line graphs
Pie charts
Tally charts
Two-way tables
Time
Scatter graphs
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The On-Screen Calculator
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calculator buttons
0
CE means clear last entry
C means clear all calculation
Backspace deletes the number on
the right of the answer window
12345
1234
Backspace
Backspace
CE
C
Answer window
7
8
9
÷
divide
4
5
6
x
multiply
1
2
3
–
subtract
0
.
+
=
= do the calculation
+
7
Decimal
point
add
Enter numbers and operations with your mouse
7
2
x
+
7
3
=
x
49
3
=
6
15
6
Strictly this is wrong, since we do the
multiply first then the addition.
÷
13
=
2
1
=
0.285714
To 1 decimal place this is 0.3
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Scatter graph
A school used a graph showing predicted GCSE grades from KS3 point
scores for history. The solid line shows the national progress from KS3
to GCSE in history. There were 28 students in the class.
Which statements are true.
History GCSE predictions from KS3 average point scores
Predicted GCSE History grade
A*
This is the highest boy’s grade = A
A
All girls achieved at least grade E
B
One boy achieved grade A*
6 students achieved grade C
C
D
6 students achieved grade C
Girls
Boys
E
More than 55% of students
achieved grade A*-C
F
This is the lowest girl’s grade = E
G
10
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
and
below
and
above
Key Stage 3 2003 Average Points Score
Total number of students obtaining A*– C = 16
Total number of students = 28
Fraction achieving A*– C was
1
6
÷
2
16
28
8
=
0.5714
0.57 is the same as 57%
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