Question in probability ( is in the image)?
In all of these questions, we're working with the probability of the wheel landing on a certain space or a kind of space.
The probability of these events occurring can be found by dividing the number of ways we can meet the conditions by the number of ways the events can transpire:
#i - On the spin, we get an even sector
There are 10 sectors and 5 of them are even (
#ii - On the spin, we get a shaded sector
There are 4 shaded sectors, so we get:
#iii - On the spin, we either a shaded sector or an even one
We already know the probability of getting an even number is
#iv - On the spin, the number is odd and shaded.
We've already worked this out for even numbers and it turns out we have the same number of odd numbers that are also shaded (the 1 and 3). So we have: