Mathematics, 29.10.2020 06:50 alexanderickh1
A set of exam marks has mean 70, median 65, inter-quartile range 25 and standard
deviation 15 marks. It is decided to subtract 10 from all the marks. For the new set of marks,
i) what is the new mean?
ii) what is the new median?
I
iii) what is the new inter-quartile range?
iv) what is the new standard deviation?
Answers: 3
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Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?
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A set of exam marks has mean 70, median 65, inter-quartile range 25 and standard
deviation 15 marks...
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