More Terminology

Question 1

Simplify 7 + (-2) =

Answer 1

7 - 2 =

Question 2

Simplify 1 - (-3)

Answer 2

1 + 3 =

Question 3

The product or quotient of two numbers that are both positive or negative will give a ______ number

Answer 3

positive

Question 4

The product or quotient of two numbers that are both opposite in positive or negative will give a ______ number

Answer 4

negative

Question 5

In a cartesian plane, the _____ axis is placed first

Answer 5

X

Question 6

In a cartesian plane, what are the coordinates started and ended by

Answer 6

Brackets

Question 7

In a cartesian plane coordinate, what symbol is used to show the separation between the x and y axis

Answer 7

the comma , (e.g (-3,2)

Question 8

how do you find the percentage of a number

Answer 8

Multiply the percentage as a decimal (e.g 40% of 650 = 0.4x650)

Question 9

what is a sample space

Answer 9

The set of all possible outcomes of an experiment.

Question 10

what is a compound event

Answer 10

a collection of two or more outcomes from the sample space of a chance experiment

Question 11

mutually exclusive events

Answer 11

Two or more events that share no outcomes

Question 12

non-mutually exclusive events

Answer 12

two or more events that share one or more outcomes

Question 13

complementary events

Answer 13

if all the outcomes in the sample space are divided into two events, they are complementary events.

Question 14

complement is if

Answer 14

an experiment was performed and an event did not occur, then the complement definitely occurred (e.g rolling 1, 2, 5, 6 is an event. Rolling 1 or 6 is a complement)

Question 15

theoretical probability

Answer 15

The actual chance that an event will occur when an experiment takes place. p= number of favourable outcomes/ total number of outcomes

Question 16

experimental probability

Answer 16

The experimental probability of an event occurring is the number of times that it occurred when the experiment was conducted as a fraction of the total number of times the experiment was conducted. e.g if the dice was rolled 600 times and the 5 was rolled 53 times the experimental probability would be 53/600

Question 17

more than or greater than means

Answer 17

the numbers greater than that particular number and NOT INCLUDING THE PARTICULAR NUMBER

Question 18

Less than

Answer 18

The numbers less than the particular number and NOT INCLUDING THE PARTICULAR NUMBER

Question 19

At most or At least

Answer 19

all the numbers before or after the particular number and INCLUDING THE PARTICULAR NUMBER

Question 20

two step experiments can be recorded with

Answer 20

a two-way table