If the next digit, which in this case is in the tens place, is a 5 or above then we know to round up.
Your answer is 5,503,600.
Hope this helps!
I will send you a hopefully helpful link. https://www.ncdc.noaa.gov/sotc/national/201403
Answer:

And we can find this probability to find the answer:

And using the normal standar table or excel we got:

Step-by-step explanation:
Let X the random variable that represent the amounts of nocatine of a population, and for this case we know the distribution for X is given by:
Where
and
We have the following info from a sample of n =37:
the sample mean
And we want to find the following probability:

And we can use the z score formula given by;

And if we find the z score for the value of 0.872 we got:

And we can find this probability to find the answer:

And using the normal standar table or excel we got:

Answer:
Step-by-step explanation:
Given that X is the number of months between successive payments
Cumulative distribution function of X is

a) PMF of x would be

b) 
Answer:
4 cm
Step-by-step explanation: