Find expert answers and community insights on IDNLearn.com. Discover prompt and accurate answers from our experts, ensuring you get the information you need quickly.
We know the number of days that saw rain, n(R) = 10, the number of days that saw high winds, n(W) = 54, and the number of days that saw either rain or high winds, n(R∪W) = 56.
And we need to find the number of days that saw both rain and high winds, n(R∩W).
So, we can use the formula:
[tex]n\mleft(R\cap W\mright)=n(R)+n(W)-n\mleft(R\cup W\mright)[/tex]Thus, we obtain:
[tex]n\mleft(R\cap W\mright)=10+54-56=64-56=8[/tex]Therefore, 8 days saw both rain and high winds.