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secondary 4 | E Maths
3 Answers Below
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The answer for the two values are 10 and 11. However, are any two numbers (besides the two numbers mentioned earlier) acceptable as long as it adds up to 21 with the mean mark of 10 and mode = 11 such as 19 and 2 or 15 and 6?
15 and 6 or
19 and 2 or
18 and 3 or
17 and 4
Except
16,5
14,7
13,8
12,9
That was something I missed out
Because if this is the case, the most likely case of “unclear writing” are two-digit numbers (like those type of questions where ink is spilled on the paper thus covering the ones digit of each mark).
Other than that, I don’t see why other solutions cannot be accepted. All are possible.
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Mode : value with highest frequency, so i assume you need to have value 11 more.
So with that since u find one value , you can find the other value
It does not have to be three 11s to be counted as a mode in this case. So, I suspect the question is largely flawed (but I know the intention of 11 and 10 being the solution)