Question

A biased spinner can land on 1, 2, 3 or 4.

The table shows the probabilities that the spinner will land on 2 and 4.
1
Number
Probability
2 - 0.33
3 - ??
4 - 0.17
The probability that the spinner will land on 1 is twice the probability
that the spinner will Land on 3.
(a) Complete the table.

Answer 1

Below

Explanation:

1 would be 2 * the prob of 3 = 2 * ?? = 2 * ?? <====given

All of the probabilities have to sum to ONE

2 * ?? + .33 + ?? + .17 = 1.0

3 ?? = .5

?? =~ .17