The table shows the population of a school for the years 1992-2008. Year: 1992, 1994 1996, 1998, 2000, 2002, 2004, 2006, 2008. P
opulation: 628, 656, 692,751, 793, 840 ,868, 902, 940. Which of the following is the best prediction for the population in 2012? A. 1000 B. 1100 C. 1150 D. 2010
2 answers:
Answer:
(A) 1000
Step-by-step explanation:
We will form a graph of the points give.
Let x denotes the year and y denotes the population in the corresponding year.
We get the best fir line as :
y =20.225x-39664
Now, to evaluate the population in 2012, we will put x=2012
y = 20.225(2012) - 39664
y = 1028.7
So the best prediction for the population in 2012 is 1000.
Hence, option (A) is correct.
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Solution -
The probability of getting 6 from a single roll of a fair dice =
The probability of getting any other number rather than 6 would be
So when the outcome is 6, then he wins $5 ,otherwise he has to pay $2
So
E(X) = Expectation value = ( ∵ $5 gain so +ve and $2 loss so -ve)
=
∴ So Merrill will lose dollar
Interest rate= 0.083%
Step-by-step explanation:
Principal= $5000 Amount= $10000 Time period= 12 years
A=Amount, P= Principal, I= Simple Interest r= Rate of interest t= Time period