The Advanced Numeracy Test Workbook - Mike Bryon [25]
A 1.0%
B 1.5%
C 2.0%
D 2.5%
Answer
Q46. A bag contains three balls, one red, one blue and one yellow. To the nearest percentage point, what is the percentage probability that the SECOND ball drawn will be yellow?
A 66%
B 100%
C 50%
D 33%
Answer
Q47. Another way to describe statistical sampling is:
A The null hypothesis
B Data sampling
C Simulation
D Representative sampling
Answer
Q48. What is the surface area of a box that is 3 metres long, 2 metres high and 2 metres deep?
A 64m2
B 32m2
C 27m2
D 125m2
Answer
Q49. Probability means:
A Anticipating problems
B Digitally encoding
C The likelihood of something happening
D The cumulative frequency of an event
Answer
Q50. Every hour the number of bacteria in a sample doubles. If the original number of bacteria is 100, and 50 bacteria are removed every two hours, how many bacteria are there after five hours?
A 3,050
B 3,900
C 1,900
D 2,700
Answer
End of test
Tests 8 and 9
Data interpretation
These tests are becoming extremely common and present you with a series of sets of data made up of, for example, a table, passage, graph or chart. The subject of the majority of these data sets will relate to the workplace and/or to business. However, expect the unexpected because the subjects are also drawn from every and any discipline. In some tests the amount of data presented is extensive and some is irrelevant, so you must filter through the material quickly to find the relevant items. Every set of data is followed by a series of questions each with a list of suggested answers. You have to sift through this information combining relevant data from the respective sources and select one of the suggested answers. In order to identify the correct answer you have to demonstrate good judgement and undertake calculations.
You are expected to answer the questions using only the information contained in the data set. Be careful if you know something on the subject or if you believe the data to be factually incorrect, controversial or out of date. It is not a test of your general knowledge, nor your knowledge of the last findings in the discipline or your political views. So feel completely at ease about answering a question using the data provided even if you believe it to be false, given what you have learned during your education or read in a newspaper that morning.
If you face a data interpretation test online or it is administered at a computer screen, be aware that diagrams on the screen can sometimes appear misleading, especially in the case of geometric shapes, tables and graphs as the screen in some instances can distort the image or the scale or both! The test author is aware of this and will have provided sufficient information to arrive at the answer. So if you are unlucky enough to find a distorted image or find its scale hard to read, rely on the written information and avoid drawing unnecessary assumptions about the appearance of a diagram, table or graph on the screen. For example, if a shape is described as a cube but on the screen the sides do not all seem equal, ignore the appearance of the sides and treat the shape as a cube. Equally, if a table or graph says that quantity x is the largest but on the screen it looks as if quantity y is the same or in fact bigger, take no notice and treat quantity x as the largest.
The following 60 practice questions are organized as two realistic practice tests. The tests provide a genuine test experience in terms of the question types, time allowed and the necessary sheer hard work and sustained concentration required of a real data interpretation test.
Test 8: Data interpretation
Test instructions
This test comprises 30 questions and you are allowed 40 minutes in which to complete it. There are a total of four sets of data. The first two are