A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

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

  • This Question is Open
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    PlZ help

  2. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i don't understand this question

  3. kropot72
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    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: \[\large Expected\ number=\frac{1500\times68}{100}=you\ can\ calculate\]

  4. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.