Question

Question 2 3 pts The boxplots below show the distribution of test scores for two classes. Class A Class B 0 10 20 30 40 50 60 70 80 90 100 Test scores Which of the following statements is a valid conclusion that can be drawn from the boxplots? Choose all that apply. Class A and B have approximately the same percentage of students who scored 70 or higher on the test. Class A has a greater percentage of students who earned between 45 and 70 points on the test. Class B has more students than class A. At least 25% of each class earned a B (80 or higher on the exam). Class B has greater variability in the test scores.

Answer 1

Box plot On median maximum minimum class A 마 - 30 55 90 To so minimum = 30 maximum -90 5 ♡, -55 25 Q = 70 percentile or first quartile (median) percentile or third th 75 Quartile & 80 Inter Quartile Range -2, 80 - 55 CS Scanned with CamScanner -25 IQR

class B 1 70 80 100 35 lo minimum =10 100 maximum 25%) (first a quartile or 25% 9 , - 35 70 (median) P2= (third quartile or 75%) 80 an Range- 93-2, não Inter quartile -80-35 IQR = 45 from the statements the test on option 9 who higher scored 10 or both class A for =70 Qr median an and class the so and class B the same percentage of have class B the Yo or higher on students who scored CS sut Scanned with CamScanner

is correct. Option 6 class A hove greater percentage of studente on between earned 70 pointe and 70 45 Who the test B less than the ره class Reason: Q (250) same ane and medians for both class A on to given can't conclude due option@ no we test scores , box plot represents option for class B 80 represents ą (75%) 100-as= the exam represents on so on hi higher 252 so option Dis correct. option @ I QR for class A = 2s Iar for class B = 45 So class B has greater variability correct Answers I ✓ 12 2, 4, 5 x CS Scanned with CamScanner Ir