Answer:
you may feel tired all the time if you have chronic fatigue syndrome. This condition causes extreme fatigue that doesn’t improve with sleep. Its cause is unknown. There’s no test to confirm chronic fatigue
Explanation:
Answer:
Having a mobile labor force helps keep unemployment low. It is important to an economy that people be willing and able to go where the jobs are located.
Explanation:
I can give you one method: you'll have to find what to call it.
1) take the attendance of the last five years; add all numbers and divide by 5 to give you the average attendance.
Just thought of this:
2) again look at last 5 years; see if you can get a percentage of increase for each year.
Did it increase 5% or more each year? Then take the % from just the previous year (2014) & give that to the 2015 race to project for 2016 race.
Answer:
A. Standard deviation is always a non-negative number.
Explanation:
The true statement about standard deviation is that, standard deviation is always a non-negative number.
A standard deviation is calculated by taking the square root of variance and as such the value of standard deviation is always a positive number and not a negative number.
Additionally, the variance of a sample population is calculated by the summation of all the squared distances obtained from the mean divided by the total number of samples. Hence, all the values of the variance are always positive (non-negative) numbers because they are squared. Consequently, the standard deviation would as well always be a non-negative number.
