Question

1
The double box-and-whisker plot shows the test scores earned in Ms. Ricks' first and second period classes. Based on the
information presented, select all the statements that correctly compare to the two classes,
Test Scores
1st Period
2nd Period
50 55 60 65 70 75 80 85 90 95 100
A The highest score was obtained in Ms. Ricks' second period class.
B The lowest score was obtained in Ms. Ricks' first period class.
C The Interquartile Range (IQR) is higher in Ms. Ricks' first period class.
D The Interquartile Range (IQR) is higher in Ms. Ricks' second period class.
EMs. Ricks' first period scored better overall than second period.
F Ms. Ricks' second period scored better overall than first period.

Answer 1

Answer:

B and c and also f is the answer

1st Period: Minimum = 60, Lower Quartile = 75, Median = 80, Upper Quartile = 90, Maximum = 98

​* Range = 98-60 = 38; *Interquartile Range = 90-75 = 15

​

2nd Period: Minimum = 70, Lower Quartile = 80, Median = 85, Upper Quartile = 91, Maximum = 95

* Range = 95-70 = 25; *Interquartile Range = 91-70= 21

​

​Correct Answers: B, C, F

​B - lowest score was a 60 in first period

​C - IQR in 2nd period is 21, which is higher than 15 in first period

​F - Approximately 75% (Q1-Q3) of first period scores are higher than 75% (Q1-Q3) of second period.

​

Answer 2

Correct answers are :-

B - lowest score was a 60 in first period

​C - IQR in 2nd period is 21, which is higher than 15 in first period

​F - Approximately 75% (Q1-Q3) of first period scores are higher than 75% (Q1-Q3) of second period.

What is statistics?

The practice or science of collecting and analysing numerical data in large quantities, especially for the purpose of inferring proportions in a whole from those in a representative sample.

1st Period: Minimum = 60, Lower Quartile = 75, Median = 80, Upper Quartile = 90, Maximum = 98

​* Range = 98-60 = 38; *Interquartile Range = 90-75 = 15

​

2nd Period: Minimum = 70, Lower Quartile = 80, Median = 85, Upper Quartile = 91, Maximum = 95

* Range = 95-70 = 25; *Interquartile Range = 91-70= 21

​Hence the solutions are:-

B - lowest score was a 60 in first period

​C - IQR in 2nd period is 21, which is higher than 15 in first period

​F - Approximately 75% (Q1-Q3) of first period scores are higher than 75% (Q1-Q3) of second period.

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