1. 81.72
2. 10.37
3. 81.72 + 10.37 = 92.09 81.72 - 10.37 = 71.35
4. 81.72 + 2(10.37)= 102.46 81.72 - 2(10.37) = 60.98
5. 81.72 + 3(10.37) = 112.83 81.72-3(10.37) = 50.61
6. no
7. It is not bell-shaped
8. P(>=90) = 15/50 = 3/10 = 30%; 2nd way??
9. 5 = 68, 12 = 72, 24 = 82, 35 = 89, 43 = 92
10. 80.6
11. no
12. The population mean includes all of the data values and the sample mean only includes the 5 data values.
Answer:
37.5 +25.5
Step-by-step explanation:
37.5+25.5 = 63
37.5-25.5 = 12
12 chaperones to 210 students....12/210 reduces to 2/35
18/300 reduces to 3/50
20/350 reduces to 2/35
8/160 reduces to 1/20
14/260 reduces to 7/130
so the same ratio would be Jefferson High School
Answer:
Step-by-step explanation:
11/77=x/21
x=3
2+a-2=16 hopefully this will help
