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kirill [66]
3 years ago
9

Answers please ASAP !!!!

Mathematics
1 answer:
natima [27]3 years ago
7 0

Answer:

c

Step-by-step explanation:

because isaybso

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What percent of 128 is 32
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What is the fourth term of the arithmetic sequence described by the explicit formula an = 2 + (n - 1)25?
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52

Step-by-step explanation:

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3 0
3 years ago
Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence i
mash [69]

Complete Question

A biologist reports a confidence interval of (3.5,4.9) when estimating the mean height (in centimeters) of a sample of seedlings. What is the estimated margin of error and the sample mean?

Answer:

The  margin of error is  E = 0.7

The  sample mean is  \=  x  =  4.2

Step-by-step explanation:

from the question we are told that

   The  upper limit is  k  =  4.9

    The  lower limit is  r = 3.5

Generally the margin of error is mathematically represented as

      E =  \frac{k - r}{ 2}

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     E = 0.7

Generally the sample mean is mathematically evaluated as

        \=  x = k  -  E

=>    \= x  =  4.9 - 0.7

=>    \=  x  =  4.2

4 0
3 years ago
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