Lesson details

Key learning points

  1. In this lesson, we will look at calculating probabilities and putting events in order of likelihood. We will then calculate probabilities using spinners and number cards.

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5 Questions

Q1.
There are 20 guests at a party. 12 of them are drinking coffee and the rest are drinking tea. What is the probability of selecting one who is drinking tea?
12/20
Correct answer: 40%
8
Cannot say.
Option 5
Q2.
There are 18 marbles in a bag. 13 of them are not green. What is the probability of selecting a green marble?
13/18
Correct answer: 5/18
5%
Cannot say.
Q3.
The probability that it rains tomorrow is 0.4. What is the probability it is sunny?
0.4
0.6
40%
Correct answer: Cannot say.
Q4.
There are 100 cars in a car park. 40 of them are yellow. What is the probability of choosing a car that is not yellow?
Correct answer: 3/5
40%
60
Cannot say.
Q5.
The probability that it will snow tomorrow is 0.05. What is the probability that it won't snow?
Correct answer: 0.95
5
5%
95
Cannot say.

5 Questions

Q1.
What is the probability that this fair spinner lands on an odd number?
0.3
1
3
Correct answer: 60%
Q2.
I roll a 10-sided dice. What is the probability I roll above a 5?
Correct answer: 0.5
0.6
6
6%
Q3.
From the letters above, what is the probability of selecting a vowel?
Four to Seven
Correct answer: Four Elevenths
Four
Seven Elevenths
Q4.
I roll a 6-sided dice. What is the probability that I roll a number greater than 8?
Correct answer: 0
0.2
0.8
1
Q5.
What is the probability that this fair spinner lands on a white triangle?
0
0.2
Correct answer: 0.4
2

Lesson appears in

UnitMaths / Probability