Probability
A bag contains 5 red marbles, 3 blue marbles and 2 green marbles.
What is the probability of selecting a blue marble at random?
P(Blue)=3/10
Find the mean of:
4, 6, 8, 10, 12
8
Convert 3.75 kilometres into metres.
3750m
Find the median of:
3, 7, 8, 5, 1
5
Convert 4.2 kilometres into centimetres.
420 000 cm
A standard six-sided die is rolled once.
What is the probability of not rolling a 4?
5/6
Find the mode of:
6, 4, 6, 8, 3, 6, 5
6
Convert 3 750 millimetres into metres.
3.75m
Find the range of:
12, 18, 15, 23, 14, 20
11
A triangle has side lengths of 7 cm, 9 cm and 11 cm.
What is the perimeter of the triangle?
7+9+11=27
Perimeter = 27 cm
A coin is tossed and then a six-sided die is rolled.
What is the probability of getting a head and rolling an even number?
1/4
The scores in a game were:
15, 12, 18, 14, 16, 19
15.7
A rectangle has a length of 14 m and a width of 8 m.
What is the perimeter of the rectangle?
44m
Find the median of:
21, 14, 18, 22, 17, 19, 16, 20
18.5
A circle has a diameter of 14 cm.
What is the circumference of the circle?
43.96 cm
The favourite sports of students in a class are shown below.
Soccer 8
Basketball 6
Netball 4
Tennis 2
One student is chosen at random.
What is the probability that the student prefers either soccer or basketball? Give your answer as a fraction in simplest form.
7/10
Find the mean and range of:
25, 30, 28, 35, 22, 40, 20
Mean = 28.6
Range = 20
A rectangle has a length of 15 cm and a width of 8 cm.
What is the area of the rectangle?
120 cm²
Find the mode and median of:
8, 12, 15, 12, 18, 20, 12, 25, 30
Mode = 12
Median = 15
A triangle has a base of 12 m and a height of 9 m.
What is the area of the triangle?
54 m²
A box contains 4 red counters, 3 blue counters and 2 yellow counters.
Two counters are selected without replacement.
What is the probability that both counters are red?
12/72 = 1/6
The mean of five numbers is 18.
Four of the numbers are 12, 15, 20 and 22.
What is the missing number?
21
A circle has a diameter of 14 cm.
What is the area of the circle?
153.86 cm²
Find the mean, median, mode and range of:
14, 18, 22, 18, 25, 30, 18, 16, 24, 28
Mean = 21.3
Median = 20
Mode = 18
Range = 16
A rectangular prism has a:
Length = 10 cm
Width = 6 cm
Depth = 4 cm
What is the total surface area of the rectangular prism?
248 cm²