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Mathematics: Post your doubts here!

Hamnah Zahoor

Hamnah Zahoor

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hellodjfos;s'ff said:
Friends were to be divided into 3 boats so it's a selection/combination. 3 seat, 2 seat and 1 seat boats were available so 6C3*3C2*1C1=60 is the answer. Common mistake some people made was that they used permutations.
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I solved it incorrectly and used permutations ....Unfortunately.
 
Kanekii

Kanekii

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I literally checked the first and last row to check if it was arranged seems like it was not arranged in the middle row.
Btw for the combination question what if we used factorials instead like:
6!/3!*2!*1! would that be correct or still wrong.
 
F

FaDGus

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The question we were supposed to make box and whisker plot, what was the last part of it? Did it ask us to write down the median and quartiles?
 
hellodjfos;s'ff

hellodjfos;s'ff

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FaDGus said:
The question we were supposed to make box and whisker plot, what was the last part of it? Did it ask us to write down the median and quartiles?
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They had given space above the box and whisker plots to do working to find median and the quartiles so you should have shown some sort of working that would give you a mark or two.
 
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