Answer:
Mean temperature for the first 8 days was 
Step-by-step explanation:
Mean = 

Best Regards!
Answer:
1 : 19 PM
Step-by-step explanation:
9 + 3 = 12
42 + 37 + 79
12:00 + 1 hour and 19 minutes
1 : 19 pm
Answer:
10 feet
Step-by-step explanation:
18-8=10 so the remaining 10 feet is what he needs to descend.
Refer to the figure below.
Assume that there are n correct measurements

Because each measurement has an error of 0.2 in, the actual measurements are

From the figure, the analysis indicates that the correct mean is
μ = 3 in = 3*2.54 cm = 7.62 cm
The correct standard deviation is
2.934 in = 2.934*2.54 cm = 7.45 cm
Answer:
μ = 7.62 cm
σ = 7.45 cm
I belive it might be a right triangle