Question

Victoria spends the two spinners shown 500 times solve a percent equation to predict the number of times the sum is less than or equal to 3. Enter the correct answers in the boxes.

Answer 1

The predicted number of times the sum is less than or equal to 3 is 133

How to predict the number of times the sum is less than or equal to 3

From the question, we have the following parameters that can be used in our computation:

The spinners

Where, we have

Total outcomes = 5 * 3 = 15

Outcomes whose sum is less than or equal to 3 = (1, 1), (1, 2), (2, 1) and (2, 1)

So, we have

P = 4/15

This means that

Outcomes = 4/15 * 500

Evaluate

Outcomes = 133 (approximated)

Hence, the number of times is 133

Answer 2

Given t spinners :

The first has the numbers : from 1 to 5

The second has the numbers : from 1 to 3

So, the sum is less than or equal to 3 can get if the two spinners give 1 or 2

So, the probability to get 1 or 2 from the first spinner = 2/5

And the probability to get 1 or 2 from the second spinner = 2/3

So, total probability = 2/5 * 2/3 = 4/15 = 26.66%

She spends the two spinners 500 times

So, the equation will be :

`26.66\%*500=x`

Solve for x:

`26.66\%*500=133.3`

So, the number of times = 133