Answer:
i dont think anyone can see it i cant
Step-by-step explanation:
add the mileage 51+69 = 120 km
add the times 4+5=9 hours
now divide the two
120/9 = 13.3 km per hour average speed
Answer:
you need to divide the surface are and the base and you should get the number of each lateral face
Step-by-step explanation:
but you do need to tell me the numbers so do that in the comments
Answer:
B) 1.078 < 1.23 (T)
Step-by-step explanation:
A) 1.23 < 1.203 (F)
B) 1.078 < 1.23 (T)
C) 1.17 > 1.203 (F)
D) 1.078 > 1.17 (F)
Answer:
---- sample standard deviation
---- sample variance
Step-by-step explanation:
Solving (a): The sample variance
First, we calculate the midpoint of each class (this is the average of the limits)
So, we have:


And so on
So, the table becomes:

Calculate the mean




The variance is:

So, we have:



The sample standard deviation is:



Solving (b): The sample variance
In (a), we calculate the sample variance to be:
