Mathematics, 24.11.2020 21:40 ALEX33333
These box plots show daily low temperatures for a sample of days in two
different towns.
Town A
15 20
30
40
45
Town B
15
20
25
30
0
5
10
15
20
40
45 50
55
60
25 30 35
Degrees (F)
Which statement is the most appropriate comparison of the spreads?
O
A. The interquartile range (IQR) for town A, 30", is less than the IQR
for town B, 43
O
B. The interquartile range (IQR) for town A, 20", is greater than the
IQR for town B, 10'.
O
C. The standard deviation for town A, 20", is greater than the
standard deviation for town B, 10'.
O
D. The interquartile ranges (IQRs) for towns A and B are both 30°.
Answers: 3
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Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?
Answers: 2
These box plots show daily low temperatures for a sample of days in two
different towns.
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