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Kumar S.
Tutor for 2 years, Engineer
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Applied Mathematics
TutorMe
Question:

what is the advantage of using mean, medians and mode?

Kumar S.
Answer:

Mean is used in the problems that can have any value within some range of values and mean will help us to know the average of all the numbers Median helps to know what is the middle value of a set of ordered observation. Median is useful when there are a few values with can get absurdly high or low and it can disturb the average values. The mode is used in the cases where will wish to know the most likely to obtain a result. It has the highest occurring value

Chemistry
TutorMe
Question:

Which element is more reactive: Sodium or Francium

Kumar S.
Answer:

The Answer would be Francium: The reason would be that the ability to react in the same group in a periodic table increases going down. This happens because when going down a group the number of shells increases and hence the distance from proton pulling it towards the nucleus increases. The net effective pull is weak for the outer most electron and it is easier for the electron to leave the atom and take part in chemical reaction

Physics
TutorMe
Question:

Which sphere will bounce higher when dropped from same height: rubber or steel.

Kumar S.
Answer:

The answer would be Steel sphere: Reason being that on impact with a solid surface steel will not get deformed and at the same time rubber will get deformed a little on impact, Hence rubber will lose out on energy due to deformation and steel will bounce back since no energy is lost owing to no deformation in shape on impact

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