stats:find the mean

please help! i know exactly how to find the mean but i am having a problem finding the midpoints. couldn't get them right :(

salary employees
5,001- 10,000 == 16
10,001-15,000 == 15
15001-20,000 == 11
20,001-25,000 == 15
25,001-30,000 == 23

  1. 👍 0
  2. 👎 0
  3. 👁 128
asked by sha
  1. If you want the mean salary, you can only get an approximate value since you only have histogram data (the number per salary interval). Assume that the number 16 applies to a salary at the midpioit of the first interval ($7500), etc.

    The mean will be
    (16*7500 + 15*12500 + 11*(17,500) + 15*22500 + 23*27,500)/(16+15+11+15+23) = $18,375

    1. 👍 0
    2. 👎 0
    posted by drwls
  2. thanks a bunch!! =D

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math

    Went ahead and did the HW the teach recommended but she did not post the answers and I would like to see if im on the right track. Problem 1: Are the vectors (2,−1,−3), (3, 0,−2), (1, 1,−4) linearly independent? Problem 2

    asked by John Rose on May 11, 2013
  2. Geometry

    Okay, this is a problem that I've tried over ten times before getting a fresh problem and trying that one too. I've never gotten a correct answer and I can't figure out why it's not right. Here's the problem, "Find the distance

    asked by Aubry on September 21, 2006
  3. statistics - can someone please Help me

    I have tried for days to figure out how to work this problem. Please help show me how to find the answer. A particular radioactive isotope decays from 210 mg to 182.7 mg in 15 days. Find the half life of the isotope. I can not

    asked by Tina on March 10, 2015
  4. chemistry

    I have been having a problem with solving a chemistry problem. The problem requires finding the density in copper at 1305K (the temperature changes when you reset the problem). I think I am using the proper formula,

    asked by Al on November 17, 2013
  5. chemistry

    I have been having a problem with solving a chemistry problem. The problem requires finding the density in copper at 1305K (the temperature changes when you reset the problem). I think I am using the proper formula,

    asked by Al on November 17, 2013
  6. English

    1. The hospital is for certain people. 2. He has a certain problem. 3. He has a sure problem. 4. He is certain that the boy is diligent. -------------------------- Are they all grammatical? The meaning of 'certain' seems to be

    asked by rfvv on November 16, 2014
  7. chemistry

    How much energy is evolved when 2.65 mg of Cl(g) atoms adds electrons to give Cl1-(g) ions. No clue how to go about solving this problem as it doesn't really relate to any of my examples in my text book or notes. All I can find

    asked by Spider on April 3, 2010
  8. math

    What strategy did you use in solving this problem? 22. Suppose that you wanted to find the whole numbers represented by each of the letters in the following addition problem: Which problem-solving strategy might be most helpful to

    asked by kim on January 20, 2010
  9. Algebra

    Use the above graph of f(x) to complete the following table for values of its inverse function, f^{-1}(x). The graph has a point on (2,2)the y-intercept is 4 the x intercept is 3 x =-4, 8, 0, -2, 2 f^{-1}(x) Note: You can earn

    asked by kim on June 7, 2015
  10. algebra

    i have a homework problem that i don't know how to do it the question to the problem says: Find the value of expression.identify the property used in each step and the problem is:7(10-1x3)

    asked by alejandra on October 14, 2010
  11. pre-alg

    I need help to create an addition word problem and a subtraction word problem using fractions. I need to show how to find the solution to each problem. Once I find the solutions to my problems, I have to rewrite the solutions as

    asked by AudioslavedCobain182 on October 16, 2013

More Similar Questions