The box-and-whisker plots below show the algebra test scores for two separate cl

Question

The box-and-whisker plots below show the algebra test scores for two separate classes. Which statement about the plots is true? The lowest-scoring student was in Class #1. The median score of Class #2 was higher than the median score of Class #1. The upper-quartile score of class #1 was higher than that of Class #2. The highest-scoring student was in Class #2. Maria randomly collected the state test scores of 100 students in her high school. She used these scores to evaluate the level of mathematical aptitude across the entire student body. Which statement explains why Marias sample may be biased? Students in Maria's high school may not be representative of students across the entire state. Maria used scores from fewer than 500 students. Maria should have also used the students' grade point averages to evaluate aptitude. Students who took the state test may not be representative of all students in Maria's high school. The heights of fourteen students in a gym class are 59 in a gym class are 59 in, 65 in, 57 in., 59 in, 72 in, 68 in, 71 in., 65 in., and and 63 in. Krista was told that her height is at the 75^th percentile for the class. What is Krista's height? 60 in. 64.5 in. 71 in. 73 in.

Explanation / Answer

16)4)Highest Scoring student was in Class 2

17)1)Students in Maria school may not be representative of students across the state

18)Arranging in ascending order gives

57,59,59,60,61,63,64,65,68,70,71,72,72,73.

Hence 75th percentile->middle value of the top half->11th value=71inch

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