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Natali [406]
3 years ago
5

Statistics and probability

SAT
1 answer:
torisob [31]3 years ago
7 0

Answer:

Probability And Statistics are the two important concepts in Maths. Probability is all about chance. Whereas statistics is more about how we handle various data using different techniques. It helps to represent complicated data in a very easy and understandable way.

<em>Your </em><em>well</em><em> wisher</em>

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The population of two different villages are modeled by the equations shown below. The population (in thousands) is represented
PilotLPTM [1.2K]

Answer:

1990 and 2010

y_l_w(15)=315\hspace{3}thousands\\y_l_c(15)=315\hspace{3}thousands\\y_l_w(35)=715\hspace{3}thousands\\y_l_c(35)=715\hspace{3}thousands

Explanation:

Let:

y_l_w=Population\hspace{3}of\hspace{3}Lewiston\\y_l_c=Population\hspace{3}of\hspace{3}Lockport

We need to know, in what year(s) the villages had the same population, mathematically this is:

y_l_w=y_l_c

So:

x^2-30x+540=20x+15\\\\Subtract\hspace{3}20x\hspace{3}from\hspace{3}both\hspace{3}sides\\\\x^2-50x+540=15\\\\Subtract\hspace{3}15\hspace{3}from\hspace{3}both\hspace{3}sides\\\\x^2-50x+525=0

Solving for x:

Factoring

(x-15)(x-35)=0

Hence:

x=15\\\\or\\\\x=35

Therefore the year(s) which the village had the same population are:

1975+15=1990\\\\and\\\\1975+35=2010

In order to find the population of both cities during the year(s) of equal population, just evalue the equations at x=15 and x=35:

y_l_w(15)=315\hspace{3}thousands\\y_l_c(15)=315\hspace{3}thousands\\y_l_w(35)=715\hspace{3}thousands\\y_l_c(35)=715\hspace{3}thousands

7 0
3 years ago
What is the most important deterrent of classical theory?
trasher [3.6K]
In the book Dei Delitti e Delle Pene by Beccaria, "he posited that the greatest deterrent was the certainty of detection: the more swift and certain the punishment, the more effective it would be. It would also allow a less serious punishment to be effective if shame and an acknowledgment of wrongdoing was a guaranteed response to society's judgment. Thus, the prevention of crime was achieved through a proportional system that was clear and simple to understand, and if the entire nation united in their own defense." ~Wikipedia
Therefore, the most important deterrent of classical theory is the certainty of detection. 
8 0
3 years ago
Read 2 more answers
The volume of a cylinder is 400???? cubic cm and its height is 4 cm.what is the radius?
Sergio [31]

Answer: 5.64 cm

Explanation:

Volume of a cylinder = π * r^2 * h →

400 = π * r^2 * 4 →

r = 5.64 cm :)

8 0
2 years ago
Carlene is saving her money to buy a $500 desk. She deposits $400 into an account with an annual interest rate of 6% compounded
notka56 [123]

The time that Carlene would have to wait to buy the desk is 4 years.

<h3>How long would it take before Carlene can afford to buy the desk?</h3>

When an amount of money is compounded, it means that both the amount that was invested and the interest accrued earn interest.

The formula that can be used to determine the time is

N = log(FV / PV) / log(e) / interest rate

log(500 / 400) / log(e) / 0.06 = 3.71 years = 4 years

To learn more about how to determine time, please check: brainly.com/question/25760893

4 0
3 years ago
For which of the following will an employment application most likely ask?
My name is Ann [436]

Answer: A. Education history

Explanation: Parental employment history and loan history are not things they are not supposed to ask about and financial history is generally considered private. Education history makes the most sense because they would want to know if their applicants have the education needed for the job.

Hope this helps!  :)

3 0
4 years ago
Read 2 more answers
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