anonymous
  • anonymous
there are 1500 students in the school based on the sample proportion, how many students in the school would be expected to do household chores for at least two hours every week? Time (in hours) 0-1 2-3 4-5 6-7 Number of students 32 64 3 1 A.480 B.960 C.1.020 D.1.440
Algebra
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anonymous
  • anonymous
there are 1500 students in the school based on the sample proportion, how many students in the school would be expected to do household chores for at least two hours every week? Time (in hours) 0-1 2-3 4-5 6-7 Number of students 32 64 3 1 A.480 B.960 C.1.020 D.1.440
Algebra
katieb
  • katieb
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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anonymous
  • anonymous
PlZ help
anonymous
  • anonymous
i don't understand this question
kropot72
  • kropot72
Number of students in the sample = 32 + 64 + 3 + 1 = 100 Number of students in the sample who do chores at least 2 hrs/week = 64 + 3 + 1 = 68 Proportion of students in the sample who do chores at least 2 hrs/week = 68/100 Expected number of students in the school who do chores at least 2 hrs/week is given by: \[\large Expected\ number=\frac{1500\times68}{100}=you\ can\ calculate\]

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