<span>An accepted hypothesis can be rejected later on because of an experiment to test the hypothesis. Which causes the hypothesis to change and have a new prediction. During a scientific experiment the predicted outcome may change which is okay, but the hypothesis must change too.</span>
A country that is not growing is characterized by an age structure that is largest among post-reproductive years.
The value of q in p2= 0.49 is A.
0.49(2x0.7xq)+q2=1
1.4qxq2=0.51
1.4qxq=0.714
q+q=0.510
q=0.26
round it up to 3
