statistics

posted by .

basically i'm at the begining of the text book doing summer work

it's talking about mean and stuff

asked to find the mean of a set of data and given 14 different numbers

the question then goes on and tells me

a fifteenth number is added to the set of data with the value of zero find the new mean which i did

it asks

what property of the mean does this sitation illustrate?

I do not know what exactly it's asking me here it obviouly made the mean go down but what does it mean by property of the mean??

i do not know how to answer this question

  • statistics -

    One of the properties of the mean is that all numbers of the data set contribute equally (have equal weight) to calculate the mean. Therefore it can be distorted or affected by extreme values, or noise, or errors.
    I suppose that the last value you added was way off the other values.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math question

    hi, i have a math question that i need help with: when data are non-numerical but can be ordered, such as letter grades, the mean cannot be calculated directly; but both the median and mode can be found. Last year in Ms. Flag's history …
  2. math

    You are given the following: there are 27 pieces of data mean is 60 standard deviation is 25 You realize that one of the pieces of data is inputted wrong..... it was a 25, but it is suppose to be 52.... find the actual mean and standard …
  3. statistics

    ok i was given a set of data asked to create a graph of my choice to represent the data then i'm asked Does the sahpe of the distribution allow the use of the mean and the standard deviation to describe it?
  4. Math Ms. Sue please

    2. Find the outlier in the data set and tell how it affects the mean. 4, 4, –6, –2, 14, 1, 1 (1 point) –6; it raises the mean by about 1. –6; it lowers the mean by about 1. 14; it raises the mean by about 1.9. 14; it lowers …
  5. Math

    The stem-and-leaf plot shows the heights in centimeters of Teddy Bear sunflowers grown in two different types of soil. Soil A 65,62,61,61 75,71,70 82,81 90 Soil B 59 63,69 70,72,73,76,77,78 83 a) Describe the overlap of the two sets …
  6. Data Management

    Could you help me with this math question. The mean of 4 numbers is 5 and the mean of 3 different numbers is 12. What is the mean of the 7 numbers combined?
  7. Statistics

    The number of books sold over the course of the three-day book fair were: 365, 303, 401. Assume that samples of size 2 are randomly selected with replacement from this population of three values. a. List the different possible samples, …
  8. Check Math Answers!!

    1.Find the mean: 12, 8, 7, 10, 8, 8, 10 A)63 B)12.6 C)9** D)7 2.The sixth-grade classes have 28, 20, 30, and 25 students. What is the mean number of students in a class?
  9. Statistics

    Consider the following data set: 3, 4, 6, 7, 9, 9, 11. Identify a number you could add to the set to keep the mean equal to the median. Please help me out. I have no idea how to find this and my lesson doesn't explain how to do it …
  10. math

    1.What are the mean,median,mode and range of the data set given the altitude of lakes in feet:-9,-36,-23,-8,-17,-52,-27,and-36?

More Similar Questions