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Vilka [71]
3 years ago
10

suppose the scores of standardized tests are normally distributed. If the population standard deviation is 2 points, what minimu

m sample size is needed to be 90% confident that the sample mean is within 1 point of the true population mean
Mathematics
1 answer:
Pachacha [2.7K]3 years ago
5 0

minecraft 200peso de comision

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Jeanetta collects antique picture frames. In her first year of collecting, she collects 10 frames. Each year, she hopes to colle
GREYUIT [131]

Answer:

235

Step-by-step explanation:

5 0
3 years ago
Which decimal is closest in value to the fraction below 1/9 ?<br>a) 0.111<br>b) .33333<br>c) 0.7
frosja888 [35]
1/9=0.11111.....
so the correct option is (a).
7 0
3 years ago
Read 2 more answers
Enos took out a 25-year loan for $135,000 at an APR of 6.0%, compounded monthly, and he is making monthly payments of $869.81. W
Alborosie
Present value = 135000
Monthly interest, i = 0.06/12 = 0.005
Monthly payment, A= 869.81

Future value of loan after 16 years
F=P(1+i)^n      [compound interest formula]
=135000(1+.005)^{16*12}
=351736.652

Future value of payments after 16 years
\frac{A((1+i)^n-1)}{i}
=\frac{869.81((1+0.005)^{16*12}-1)}{0.005}
=279287.456

Balance = future value of loan - future value of payments
=351736.652-279288.456
= $ 72448.20

Note: the exact monthly payment for a 25-year mortgage is
A=\frac{P(i*(1+i)^n)}{(1+i)^n-1}
=\frac{135000(0.005*(1+0.005)^{25*12}}{(1+0.005)^{25*12}-1}
=869.806892

Repeating the previous calculation with this "exact" monthly payment gives
Balance = 72448.197, very close to one of the choices.

So we conclude that the exact value obtained above differs from the answer choices is due to the precision (or lack of it) of the provided data.

The closest choice is therefore <span>$72,449.19</span>
6 0
3 years ago
Read 2 more answers
What is the answer to 78.2÷7<br>​
Lesechka [4]

Answer:

11.1714

Step-by-step explanation:

Just use a calculator! :)

3 0
3 years ago
Read 2 more answers
10+ 40 % 5 x 2 <br> what’s the answer?
LuckyWell [14K]

Answer:

I'm going to assume that was supposed to be a division sign.. so 26.

Step-by-step explanation:

multiplication/division first

40/5=8

8x2=16

then addition

16+10=26

4 0
3 years ago
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