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masya89 [10]
3 years ago
11

Pls someone help me im in a test and im stresssssing??

Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
3 0
Positive 5/8 hope this helps :) uno reverse btw lol
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A population of bears decreases exponentially.
timurjin [86]

Answer:

  0.8

Step-by-step explanation:

The annual factor will be found by dividing any year's population by the population of the year before. The points most easily read from the graph are the populations for years 0 and 1. Then the annual factor is ...

  factor = (year 1 population)/(year 0 population) = 320/400

  factor = 0.8

4 0
2 years ago
Y by the power of 2 + 4=20
LenaWriter [7]

Answer:

y is equal to 4 if that's what ur asking for

8 0
2 years ago
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Suppose you have two​ populations: Population Along dashAll students at a state college ​(Nequals​21,000) and Population Blong d
Leno4ka [110]

Answer:

See the explantion below

Step-by-step explanation:

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

Assuming the X follows a normal distribution

X \sim N(\mu, \sigma)

We know that the margin of error for a confidence interval is given by:

Me=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}   (1)

If we see the formula (1) at the same confidence level, for example 95% and with the same sample size the margin of error just depends of the deviation. If the population deviation for population A is higher than the population deviation for B then A will have more margin of error than B.

On the other case if the deviation for population A is lower than the deviation for population B, then we will have less margin of error for population A than population B.

And the other possible case if both population have the same deviation, then both have equal margin of error.  

6 0
3 years ago
Which shows .51 and .069 in fraction form in equal denominator.
Marina CMI [18]
A. Shows it in fraction form
8 0
4 years ago
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The difference of sample means of two populations is 55.4, and the standard deviation of the difference of sample means is 28.1.
Doss [256]

Answer:

since if we are testing the null hypothesis at the 95% confidence level is that the difference of the two means is not significant at the 95% confidence level, so the null hypothesis must be rejected.

Hence option 3) is correct.

7 0
3 years ago
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