The probability density function p_s (s) of the transformed variable s can be obtained by using which of the following formula? a) p_ s (s)=p_ r (r)|dr/ds| b) p_ s (s)=p_ r (r)|ds/dr| c) p_ r (r)=p_ s (s)|dr/ds| d) p_ s (s)=p_ r (r)|dr/dr|

The probability density function p_s (s) of the transformed variable s can be obtained by using which of the following formula? a) p_ s (s)=p_ r (r)|dr/ds| b) p_ s (s)=p_ r (r)|ds/dr| c) p_ r (r)=p_ s (s)|dr/ds| d) p_ s (s)=p_ r (r)|dr/dr|