Answer:
z≤2
Step-by-step explanation:
Step 1: Simplify both sides of the inequality.
−1/8z≥−0.25
Step 2: Multiply both sides by 8/(-1).
(8/−1)*(−18z)≥(8−1)*(−0.25)
z≤2
The correct answer is, obviously, 34/7.
Answer:
Whichever train has the greatest numbers
Step-by-step explanation:
Answer:
50
Step-by-step explanation:
answer is 50
Answer:
a) For the first part we have a sample of n =10 and we want to find the degrees of freedom, and we can use the following formula:

d.9
b) 
a.15
c) For this case we have the sample size n = 25 and the sample variance is
, the standard error can founded with this formula:

Step-by-step explanation:
Part a
For the first part we have a sample of n =10 and we want to find the degrees of freedom, and we can use the following formula:

d.9
Part b
From a sample we know that n=41 and SS= 600, where SS represent the sum of quares given by:

And the sample variance for this case can be calculated from this formula:

a.15
Part c
For this case we have the sample size n = 25 and the sample variance is
, the standard error can founded with this formula:
