Answer: c) 19,807
<u>Step-by-step explanation:</u>
Jessica’s Spanish test scores are 98, 74, 88, 83, 91, and 85. Find the range, median, first and third quartiles, and interquarti
2 answers:
Answer:
Range = 24, Median = 86.5, Q1 = 83, Q3 = 91, IQR = 8
Step-by-step explanation:
Jessica's Spanish test scores are :
98, 74, 88, 83, 91, and 85
First we arrange these value in lowest to greatest.
74, 83, 85, 88, 91, 98
Range = Greatest - Lowest
= 98 - 74
= 24
Median is the middle number of the data set, but there are two numbers in the middle, so take mean of the middle numbers to get median.
Median =
= 86.5
First Quartile (Q1) is the median of lower half of the data set
74, 83, 85
Third Quartile (Q3) is the median of the upper half of the data set. 88, 91, 98
Q1 = 83
Q3 = 91
Inter Quartile Range (IQR) = To get IQR subtract Q1 from Q3.
Q3 - Q1
= 91 - 83
= 8
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Amayo943,
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Answer:
D'(-2, 2); C''(3, -1); A'''(4, -2); and B''(4, 2)
Step-by-step explanation:
See attachment for the figure.
<u>For D'</u>, rotating the point (2, 2) 90° counterclockwise. This maps each point (x, y)→(-y, x); it takes (2, 2)→(-2, 2).
For C'', rotating the point (1, 3) 90° clockwise. This maps each point (x, y)→(y, -x); it takes (1, 3)→(3, -1).
For A''', rotating the point (-4, 2) 180° clockwise. This maps every point (x, y)→(-x, -y); it takes (-4, 2)→(4, -2).
For B'', rotating the point (-2, 4) 270° counterclockwise. This is the similar as rotating the point 90° clockwise. This maps every point (x, y)→(y, -x); it takes (-2, 4)→(4, 2).
