The diagram below shows how much time John spends doing different
activities each day.
Eating
Homework
Family
John's Day 5% 5%
Time
Other
10% School
Sleeping
40%
5%
5%
10%
Sleeping
10%
30%
40%
+10%
School 30%
How many hours does
John sleep in a day?
F) 1.2
G)2.4
H)9.6
J) 7.2

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