Here, the <em>standard deviation </em>is the best measure of the spread of a data set. The higher the standard deviation, the more spread out the distribution is. In this case, the distribution with the highest standard deviation (and therefore the greatest spread) is Distribution 3. Its low mean might be deceptive, but the value of a data set's mean has no effect on its spread.
Answer:
1078
Explanation:
For this you can use a proportion to solve. So first we set up the proportion as laptop over desktop is equal to "<em>l</em>" over total desktop computers. Let <em>l</em> be the total amount of laptops which is what we must first solve for.

Then we cross multiply.

Now we can solve it as a regular algebra problem,

Now that we know how many laptop computers there are we can find the total number of computers in the school. We simply add the total number of desktop computers to the total number of laptop computers.

And that is the answer. 1078.
Answer:
18750
Step-by-step explanation:
C=480
solve
480=24n+35
minus 35 both sides
445=24n
divide both sides by 24
18.541666666666666666666666666667=n
<span>so about 18 cakes</span>
Answer:
The insurance company can make $0.78 for each policy that it sells
Step-by-step explanation:
The loss incurred to the insurance company for each death claim is:

This event has a 22 in 10 million probability of happening.
The gain for the company for each policy not claimed is:

This event has a 9,999,978 in 10 million probability of happening.
The expected value is:

Therefore, over the long run, the insurance company can make $0.78 for each policy that it sells.