An urn contains one red and one black ball. A ball is drawn at random from the urn. The colour of the ball is noted and the ball is then replaced in the urn together with an additional ball of the same colour. This process is repeated sequentially. Determine the probability that the firstfirst red ball seen is drawn on or before the n'n ′ th draw.

Sketch the vector field vector f( vector r ) = 8vector r in the xy-plane. select all that apply. the length of each vector is 8. the lengths of the vectors decrease as you move away from the origin. all the vectors point away from the origin. all the vectors point in the same direction. all the vectors point towards the origin. the lengths of the vectors increase as you move away from the origin.