3 years ago

Please help im desperate. :)

Mathematics

2 answers:

nydimaria [60]3 years ago

7 0

Answer:

b is ya answer hope you have a blessed day

Step-by-step explanation:

miss Akunina [59]3 years ago

5 0

Answer:

C undefined sorry im rushing

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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

$E = \frac{k - r}{ 2}$

$E = \frac{ 4.9 - 3.5 }{2}$

$E = 0.7$

Generally the sample mean is mathematically evaluated as

$\= x = k - E$

=> $\= x = 4.9 - 0.7$

=> $\= x = 4.2$

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Read 2 more answers

Please help im desperate. :)​

Please help im desperate. :)