Answer:

Step-by-step explanation:
you have that the average sped is given by the following formula:

The uncertainty formula for a division is given by:
(1)
Δv: uncertainty in speed
Δx: uncertainty in the distance = 0.9m
Δt: uncertainty in time = 0.7s
x: distance = 8.1m
t: time = 1.7s
You replace the values of all parameters in the equation (1):

Hence, the relation between the uncertainty in the average velocity is 0.426
Answer:
The 90% CI for p is (0.53, 0.83)
Step-by-step explanation:
We have to develop a 90% confidence interval for the proportion of all students at the college that have met with a counselor to develop an educational plan.
We have a sample of size 25, where the sample proportion is:

The critical value of z for a 90% CI is z=1.645.
The margin of error is then:

Then, the lower and upper bound of the confidence interval are:

The 90% CI for p is (0.53, 0.83)
Answer:
Step-by-step explanation:
I think it is Italy and Spain. I am not hundred percent sure but I think it is Italy and Spain
80 divided by 8 = 10 and 10+2 = 12 sooo the number is 80. :)