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Gnom [1K]
3 years ago
15

The second quartile of a data set is 4.2. Which statement about the data values is true?

Mathematics
2 answers:
Setler [38]3 years ago
6 0
The second quartile is also the median. which is 50% of the data. So 1/2 of the data lies below it, and 1/2 of the data lies above it.
the correct answer would be A. the data value of 2.5 will lie below the second quartile.
Aliun [14]3 years ago
6 0
A Quartile is a 1/4 of the values which are arranged in numerical order. <span>Quartile 2 (Q2), which is also called the Median of the data set.It means half of the data set on each side of the Quartile 2.
Hence theb est answer is:
</span><span>a. the data value 2.5 will lie Below the second quartile.
</span>Because 2.5 is lower value than the 4.2 and it must lie on the left of 4.2.
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nlexa [21]

Answer:

divide

Step-by-step explanation:

divide the first one by the second that might help

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3 years ago
Find m Can you please provide a step by step
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Answer:

∠ KLM = 27°

Step-by-step explanation:

∠ KLM + ∠ NLM = 90 , that is

3x + 7x = 90

10x = 90 ( divide both sides by 10 )

x = 9

Thus

∠ KLM = 3x = 3 × 9 = 27°

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3 years ago
Salma is constructing the inscribed circle for △MNP .
Lena [83]
Construct the angle bisector of angle M. 
According to the info of another test :)
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3 years ago
Company A makes a large shipment to Company B. Company B can reject the shipment if they can conclude that the proportion of def
boyakko [2]

Answer:

z=\frac{0.1475-0.1}{\sqrt{\frac{0.1(1-0.1)}{400}}}=3.17  

The p value for this case would be given by:

p_v =P(z>3.17)=0.00076  

For this case the p value is lower than the significance level so then we have enough evidence to reject the null hypothesis and we can conclude that the true mean is significantly higher than 0.1 and then Company B can reject the shipment

Step-by-step explanation:

Information provided

n=400 represent the random sample taken

X=59 represent number of defectives from the company B

\hat p=\frac{59}{400}=0.1475 estimated proportion of defectives from the company B  

p_o=0.1 is the value to verify

\alpha=0.05 represent the significance level

z would represent the statistic

p_v represent the p value

Hypothesis to test

We want to verify if the true proportion of defectives is higher than 0.1 then the system of hypothesis are.:  

Null hypothesis:p \leq 0.1  

Alternative hypothesis:p > 0.1  

The statistic would be given by:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

Replacing the info given we got:

z=\frac{0.1475-0.1}{\sqrt{\frac{0.1(1-0.1)}{400}}}=3.17  

The p value for this case would be given by:

p_v =P(z>3.17)=0.00076  

For this case the p value is lower than the significance level so then we have enough evidence to reject the null hypothesis and we can conclude that the true mean is significantly higher than 0.1 and then Company B can reject the shipment

8 0
3 years ago
The height of five soldiers included 60inches,67inches,65inches and 64inches,if the mean of the five soldiers is 65inches what i
Nadya [2.5K]

Answer:

The last guy's height is 69 inches

Step-by-step explanation:

mean=sum of all numbers/number of numbers

There are 5 numbers in the set which means that 65 is the sum of all five numbers divided by 5. To reverse that we multiply 65 by 5 to get the sum of all of the numbers.

65*5=325

325 is the sum of all of the numbers so to find the missing number you add up all of the known numbers in the set and find the difference between that sum and 325.

60+67+65+64=256

325-256=69

The missing guy's height is 69 inches.

3 0
3 years ago
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