A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
Liza kept the following records of her utility bills for 12 months:
$29, $24, $32, $28, $45, $30, $29, $62, $40, $39, $33, $29
(a) Find the mean of Liza's monthly utility bill.
(b) Find the median of Liza's monthly utility bill.
(c) Is the mean or median a more useful representative of Liza's monthly utility bills?
anonymous
 5 years ago
Liza kept the following records of her utility bills for 12 months: $29, $24, $32, $28, $45, $30, $29, $62, $40, $39, $33, $29 (a) Find the mean of Liza's monthly utility bill. (b) Find the median of Liza's monthly utility bill. (c) Is the mean or median a more useful representative of Liza's monthly utility bills?

This Question is Closed

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0mean= sum of all the numbers/12 for median arrange the values in ascending order, median is the sum of two middle values divided by 2

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.024, 28, 29, 29, 29, 30, 32, 33, 29, 40, 45, 62 median = 30 + 32/2=62/2=31

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0and the median is 24,28,29,29,29,30,32,33,39,40,45?=31?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Is the mean or median a more useful representative of Liza's monthly utility bills?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i guess median is better representation

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0(a) Find the mean of Liza's monthly utility bill. The mean is the sum of the bills divided by the number of the bills \[\frac{29+24+32+28+45+30+29+62+40+39+33+29}{12}=35 \] (b) Find the median of Liza's monthly utility bill. The Median is the 'middle value' in the list. When the totals of the list are odd, the median is the middle entry in the list after sorting the list into increasing order. When the totals of the list are even, the median is equal to the sum of the two middle (after sorting the list into increasing order) numbers divided by two. Sort[{29, 24, 32, 28, 45, 30, 29, 62, 40, 39, 33, 29}] = {24, 28, 29, 29, 29, 30, 32, 33, 39, 40, 45, 62} There are 12 bills. 12 is an even number. The middle two numbers are 30 and 32. In effect, and in this case, the median is the mean of 30 and 32 which is 31. (c) Is the mean or median a more useful representative of Liza's monthly utility bills? I personally have no opinion. I don't recall ever computing the median in everyday life. Flip a coin or do some research or determine what answer will make the teacher happy. The definition of median came from the following web site: http://math.about.com/od/statistics/a/MeanMedian.htm
Ask your own question
Sign UpFind more explanations on OpenStudy
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
 Engagement 19 Mad Hatter
 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.