Math Unit 9, Lesson 2 Statistics Basics

Question

Question 7
The probabilities of several events are shown below.
Move a description of likelihood into each row BEST describe the event.
1 A fair coin lands on heads. Probability= 1/2
2 The Tigers win a basketball game. Probability= 3/4
3 The arrow on a spinner stops on green. Probability= 1/4
4 A multiple of 4 is an even number. Probability= 1
5 A randomly selected person right-handed. Probability= 4/5
6 The sum of two even numbers is an odd number. Probability= 0
Likely, Certain, Unlikely, Impossible, Not likely or unlikely.

Answer 1

Here’s a description of likelihood for each of the events based on their probabilities:

1. A fair coin lands on heads. Probability= 1/2
   Description: Likely (or Not likely or unlikely)
   This event has an equal chance of happening or not happening.

2. The Tigers win a basketball game. Probability= 3/4
   Description: Likely
   There is a strong chance (75%) that the Tigers will win.

3. The arrow on a spinner stops on green. Probability= 1/4
   Description: Unlikely
   There is a 25% chance for this outcome, which is less than half.

4. A multiple of 4 is an even number. Probability= 1
   Description: Certain
   This event is always true, as multiples of 4 are indeed always even.

5. A randomly selected person is right-handed. Probability= 4/5
   Description: Likely
   There is a high probability (80%) that a randomly selected person will be right-handed.

6. The sum of two even numbers is an odd number. Probability= 0
   Description: Impossible
   This event cannot happen, as the sum of two even numbers is always even.

In summary, your descriptions would look like this:

1. Fair coin lands on heads - Likely (or Not likely or unlikely)
2. Tigers win a basketball game - Likely
3. Arrow stops on green - Unlikely
4. Multiple of 4 is an even number - Certain
5. Randomly selected person is right-handed - Likely
6. Sum of two even numbers is odd - Impossible