Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

NeedsGoodAnswer

how to find cumulative frequincy

  • 2 years ago
  • 2 years ago

  • This Question is Closed
  1. JamesJ
    Best Response
    You've already chosen the best response.
    Medals 2

    Suppose your sample space has four ordered elements, A, B, C, D, each with a frequency Fa, Fb, Fc, Fd respectively. If you were plotting frequency, you'd have four equi-spaced point on the x-axis for A,B,C and D. And then for each you'd plot Fa, Fb, Fc and Fd respectively. For cumulative frequency you plot instead the sum of the frequency up to that point: Fa Fa + Fb Fa + Fb + Fc Fa + Fb + Fc + Fd More generally, if x_j, j = 1,2, ..., n are the ordered members of the sample space with respective frequencies f_j, then the cumulative frequency C_j is given by \[ C_j = \sum_{i=1}^j f_j \]

    • 2 years ago
    • Attachments:

See more questions >>>

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.