Which describes an inference that Mrs. Hardison might make after comparing the means of the two data sets? The babies in Nursery 1 spent more time napping. The babies in Nursery 2 spent more time napping. The babies in Nursery 1 had more variability in the time spent napping. The babies in Nursery 2 had more variability in the time spent nappin

marco saved more.   he saved $35 more.

step-by-step explanation:

1+2+3+4+5+6+7+8+9+10 = 55

2*10 = 20

55-20 = 35

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%