The range of a list of numbers is the biggest number minus the smallest number. In this case, it is $4.79-$4.09 which equals $0.70.
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This is ur required result in attachment
Answer:
d. Ore treated with the new process.
Step-by-step explanation:
This is a common practice in statistics, in which we use a sample of a population to infer something about the entire population. We should use a sample of 100.
For example, if we want to know the proportion of residents of Buffalo, New York, who are Bills fans, we are going to take a sample of like, 100 residents, and then use this to estimate for the entire city.
In this problem, we have that:
A new process that is supposed to increase the recovered amount is being tested. In a simple random sample of 100 batches of ore, an average of 42 pounds per ton were recovered using the new process.
So the population of interest is the ore treated with new process. We use a sample of 100 to gather information about the entire population.
So the correct answer is:
d. Ore treated with the new process.
The question is an illustration of equivalent equations.
<em>There are 11 units in all</em>
The given parameters are:
<u>Sage</u>



<u>Tristan</u>



Andre has twice of what Sage has
So, the total unit is:

<em>Sage has 2 units</em>
<em>Tristan has 5 units</em>
<em />
Because, Andre has twice of what <em>Sage has,</em>
Andre's number of units would be 4
So, we have:


Hence, there are 11 units in all
Read more about equivalent equations at:
brainly.com/question/18720297
The first equation is equal to the one in the question.