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poizon [28]
3 years ago
7

ok I need help with my homework and its due tom. so if possible plz answer asap : find the decimal of the fraction and say if it

s a terminating decimal or a repeating decimal 1/25 25/176 12/1000 write each number as a decimal [don't say if its a terminating or repeating decimal] 11 1/6 2 9/10 8 23/100 7 13/15 54 3/11 3 1/18 3 2/3 12 7/8 and that will be all thank you if you answerewd it you deserve it
Mathematics
2 answers:
ratelena [41]3 years ago
6 0
To find out whether it's a repeating or a terminating decimal, divide the numerator by the denominator.

For mixed numbers, multiply the denominator by the whole number and the numerator to that number. Use that number over as the numerator over the new fraction and use the same method above.
DIA [1.3K]3 years ago
4 0
To find out the decimal form of a fraction, just divide the numerator by the denominator (ex:1/25=.04) Terminating means it stops eventually but repeating just means it keeps on going.
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The value of mean, standard deviation and interval from the method of tree ring dating is 1273 AD, 37 years, [1250,1296].

According to the statement

we have to find that the standard deviation, mean and the intervals from the given data.

So, According to the given data from the method of tree ring dating

The value of mean is

x-bar = (1271 + 1208 + 1229 + 1299 + 1268 + 1316 + 1275 + 1317 + 1275) / 9 = x-bar = 1273 AD

And now we find standard deviation :

s = √∑(xi - x-bar) / (N - 1)

∑(xi - x-bar)^2 = (1271 - 1273)2 + (1208 - 1273)2 + (1229 - 1273)2 + ... + (1275 - 1273)2

∑(xi - x-bar)^2 = (-2)2 + (-65)2 + (-44)2 + ... + (2)2

∑(xi - x-bar)^2 = 4 + 4225 + 1936 + 676 + 25 + 1849 + 4 1936 + 4

∑(xi - x-bar)^2 = 10,659

Now,

s^2 = 10659/8 = 1332

s = 37 years

So, standard deviation is 37 years.

We need the t-distribution table since the standard deviation is unknown.  Therefore, our degrees of freedom is 9 - 1 = 8 and the critical value is 1.860.  Set up the confidence interval for the mean:

[x-bar ± t*(s/√n)] = [1273 ± 1.860*(37/√9)]

[x-bar ± t*(s/√n)] = [1250,1296]

So, The value of mean, standard deviation and interval from the method of tree ring dating is 1273 AD, 37 years, [1250,1296].

Learn more about method of tree ring dating here

brainly.com/question/15107034

Disclaimer: This question was incomplete. Please find the full content below.

Question:

The method of tree ring dating gave the following years A.D. for an archaeological excavation site. Assume that the population of x values has an approximately normal distribution.

For more data please see the image below.

#SPJ4

4 0
1 year ago
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