christeinberg1
27.01.2021 •
Mathematics
23 boys and 11 girls were given a maths test.
Their scores are listed below:
Boys: 7, 13, 15, 19, 35, 35, 37, 43, 44, 44,
45, 46, 47, 47, 49, 51, 52, 55, 55, 56,
78, 82,91
Girls: 7, 18, 23, 47,58, 63, 68, 72, 72, 75, 87
Use box plots to compare the differences between the boys
and girls scores and comment on the differences.
explore if any of the values are outliers
Calculation for outliers to use is
High Outliers > UQ + 1.5 x IQR
Low Outliers < LQ - 1.5 x IQR
.
.
Solved
Show answers
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Ответ:
(-1, 5)
Step-by-step explanation:
3 [x + y = 4]
3x + 3y = 12
- 3x + 7y = 32
-4y = -20
y = 5
x + 5 = 4
x = -1