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muminat
3 years ago
12

The line plot shows the measurement of liquids in eight identical beakers. If you wanted to put the same amount of liquid in eac

h beaker how much would there be? The liquid is measured in milliliters.
A) 7 ml
B) 1/4 ml
C) 7/8 ml
D) 1 3/32 ml
Mathematics
2 answers:
Lemur [1.5K]3 years ago
7 0
C 7/8

With the graph, you add the values of the X's together and find the mean (divide by 8)

(0.25+0.5+0.5+0.5+1+1+1.5+1.75)/8
7/8
Leokris [45]3 years ago
5 0
(1/4 + 1/2 + 1/2 + 1/2 + 1 + 1 + 1 1/2 + 1 3/4) / 8 =
(0.25 + 0.5 + 0.5 + 0.5 + 1 + 1 + 1.5 + 1.75)/8 =
7/8 ml <====
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<h2><u>Answer with explanation:</u></h2>

Let \mu be the population mean strain in a way that conveys information about precision and reliability.

The sample mean is the best point estimate of the true population mean .

As per given , we have

Sample size : n= 12

degree of freedom : df=12-1=11

Sample mean : \overline{x}=25.0

The true average strain in a way that conveys information about precision and reliability= 25.0

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Significance level : \alpha= 0.05

Since sample population standard deviation is unknown , so we use t-test.

Critical t-value for t : t_{\alpha/2, df}=t_{0.025, 11}=2.201

95% Confidence interval for true average strain in a way that conveys information about precision and reliability:

\overline{x}\pm t_{\alpha/2, df}\dfrac{s}{\sqrt{n}}

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The 95% Confidence interval for true average strain in a way that conveys information about precision and reliability: (22.9,\ 27.1)

We 95% confident that the true population average strain in a way that conveys information about precision and reliability lies between 22.9 and 27.1 .

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