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Shkiper50 [21]
1 year ago
8

Does this data appear to be proportional? Explain why or why not.

Mathematics
1 answer:
Artist 52 [7]1 year ago
8 0

The given data is proportional because, we get 3.15 when Quantity y is divided by Quantity x, y/x = 3.15

Given,

The data;-

Quantity x; 2 , 6 , 9 , 5 , 1

Quantity y; 6.3, 18.9, 28.35, 15.75, 3.15

We have to find the proportionality between the data set given;-

Lets see the proportionality;-

Quantity y ÷ Quantity x

6.3 ÷ 2 = 3.15

18.9 ÷ 6 = 3.15

28.35 ÷ 9 = 3.15

15.75 ÷ 5 = 3.15

3.15 ÷ 1 = 3.15

Here,

The given data is proportional because, we get 3.15 when Quantity y is divided by Quantity x, y/x = 3.15

Learn more about proportionality here;

brainly.com/question/29247352

#SPJ1

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Step by Step:

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Second class have higher marks and greater spread.

Step-by-step explanation:

First box plot  represents class first. From the first box plot, we get

\text{Minimum value }= 53,Q_1=62,Median=80,Q_3=86,\text{Maximum value }= 89

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Second box plot  represents class second. From the second box plot, we get

\text{Minimum value }= 56,Q_1=62,Median=74,Q_3=89,\text{Maximum value }= 96

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First class has greater minimum value, first quartile of both classes are same, second class has greater median, first class has greater third quartile and first class has greater maximum value. It means second class have higher marks but class first have less variation.

Second class has greater range and greater inter quartile range. It means data of second class has greater spread.

Therefore, second class have higher marks and greater spread.

3 0
3 years ago
A university's freshman class has 10000 students. 2500 of those students are majoring in Engineering. What percentage of the fre
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Answer:

25%

Step-by-step explanation:

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its 1/4 of the students

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Step-by-step explanation:

Stratified sampling is a random sampling method in which the population is divided into non-coinciding groups are called strata and a sample is picked out by some design within each stratum.

Given: A researcher wants to survey people from different age groups to analyze voting patterns.

Thus he will make different groups according to different ages to analyze voting patterns that are called stratum.

Thus, Stratified sampling best accomplish this goal.


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Answer:

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Hope this helps :)

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