1)split 36 into the ratio 5: 4
2)split 45 into the ratio 7: 2
3)split 112 into the ratio 5: 9
4)split 66 into the ratio 4: 7
5)split 42 into the ratio 5: 2
6)split 65 into the ratio 7: 6
7)split 99 into the ratio 4: 7
this is all the homework i got on my first day back

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample