HockeyBlockpk7039
28.10.2020 •
Mathematics
About 12% of children are nearsighted. A school district will be testing the vision of 170
incoming kindergarten children.
What proportion of these kids should we expect to be nearsighted (p-hat)?
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Ответ:
about 21 kids out of 170 are expected to be nearsighted (20:170)
Step-by-step explanation:
we find 12% out of 70 by muliplying 170 x 0.12 which equals 20.4
However it has to round up because we cant have half a child so 21 children.
Ответ:
factors of 5- 5, 10, 15, 20, 25, 30, 35, 40*
factors of 8- 8, 16, 24, 32, 40*