Answer: Human factor research
Explanation:
From the question, we are informed that a manager of a bank branch is concerned about the number of mistakes the tellers were making, so he started manipulating different aspects of the environment in the bank to see what effect each has on the tellers' performance.
We are further told that he examined factors such as the lighting, temperature, and the volume of the music playing in the bank.
He's using the human factor research approach. Here, the capabilities of human beings are determined through strength, vision, flexibility etc.
Hello there!
Let's take note of some things first. When a argument occurs, there's always two different kind of people. You would have someone who think he has a point and he explains his opinion on this matter, and then you would have the other opponent who would most likely say the complete opposite of this other person.
Now, when conduction the argument of the topic "cell phones", there would be a ton of different opinions on this matter.
For an example:
(Person #1) - opposer.
Cell Phone's are very useful, when you need to call a person, you would have something to communicate with the other person. It would be encounter as a essential in our every day life.
(Person #2) - opposer.
I believe that Cell Phones are unsafe. People could track you down and hurt you to the full. They can take your information, and then you would have some several bad cases on this matter. I believe that Cell Phones are not safe.
__________
Based on looking at this example here, you would see on how they're are two different opinions here. They both have different explanations.
I hope this helps you!
Answer:
A) discrete random variable.
Explanation:
Discrete random variables can assume only a finite number of values, and their combined total probabilities must equal 1.
On the other hand, continuous random variables can take any value with an interval or collection of intervals, which means that the possible values are infinite.
A complex random variable is a combination of two real random variables that have rel and imaginary parts.
True, I believe so if not then correct me.
Answer:
a) 
b) 
c) For this case we have the total sales $ 15 millions after t =4 months
d) 
e) This value represent the increase in the amount of sales in millions after t=4 months
Explanation:
For this case we have the following function for the sales
Part a
For this case we want to find the derivate of S respect to t and we got:
Part b
For this case we want to find the value of S when t = 4 so if we replace we got:
Part c
For this case we have the total sales $ 15 millions after t =4 months
Part d
For this case we just need to replace t=4 in the derivate and we got:
Part e
This value represent the increase in the amount of sales in millions after t=4 months
