A shop sells sizes of tops with the following frequencies: size 1 (1 time), size 2 (4 times), size 3 (1 time), size 4 (2 times), size 5 (3 times). How would you calculate the mean size sold?
1 )
Add all the sizes and divide by 5
Add the products of each size and its frequency, then divide by the total frequency
3 )
Find the size that occurs most frequently
4 )
Find the middle size when ordered
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