A A certain sum of money amount to
-Rs. 6300 in two
years
and Rs 7875
in three
years nine months at
simple interest. Find
the
sum.​

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true