The width is 35in, the length is 95in
31.5% of 473 can be calculated as follows
(31.5/100) * 473
= 14899.5/100
= 148.99
hope it helped
The mean increases when the outlier is removed
7/21 or 1/3rd, it's just a ratio of white to all, there's 7 white straws and 21 in all, then you can simplify it down to 1/3rd.
