Altogether, I have 10 bags of sweets. The mean number of sweets in the bags is 41 The table shows how many sweets there are in 9 of the bags. Number of sweets in a bag Frequency 39 40 41 42 43 44 3 2 1 1 0 2 8. Calculate how many sweets there are in the 10th bag.
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The number of sweets in tenth bag must be
total number of sweets - total in other nine bags
use the info in the question to get these two totals, the n subtract.
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