A student takes ten exams during a semester and receives the following grades: 90, 85, 97, 76, 89, 58, 82, 102, 70, and 67. Find the five-number summary used in a boxplot. Which boxplot best represents the data?
a.
A box-and-whisker plot. The number line goes from 50 to 105. The whiskers range from 58 to 102 and the box ranges from 85 to 95. A line divides the box at 90.
b.
A box-and-whisker plot. The number line goes from 50 to 105. The whiskers range from 58 to 90 and the box ranges from 60 to 80. A line divides the box at 75.
c.
A box-and-whisker plot. The number line goes from 50 to 105. The whiskers range from 70 to 90 and the box ranges from 70 to 90. A line divides the box at 84.
d.
A box-and-whisker plot. The number line goes from 50 to 105. The whiskers range from 58 to 102 and the box ranges from 70 to 90. A line divides the box at 84.

D.

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introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )