replace sentence to takagi-san's one
@@ -6,10 +6,8 @@ Random Sampling (``cupy.random``)
The big difference of :mod:`cupy.random` from :mod:`numpy.random` is that :mod:`cupy.random` supports ``dtype`` option for most functions.
This option enables us to generate float32 values directly without any space overhead.
-When major update of CuPy, numbers generated by `cupy.random` of new version
-may not be same as that of previous version even if the same seed and
-distribution is used. However this does not mean distribution from which
-numbers is generated is wrong.
+Unlike NumPy, CuPy allows itself to replace its random number generator across its major versions.
+It means that numbers generated by cupy.random of a new major version may not be the same as that of its previous one even if the same seed and distribution are used.
Sample random data
