Question 451045: The number of dry cleaning orders picked up at Sunny Fresh Dry Cleaners was sampled over 12 hour periods. Below is the sample:
142 171 125 91 140 125 97 125 162 142
125 117 89 125 140 128
From this data set, compute the sample mean, median, mode and midrange. Compute the 1st
quartile and 3rd and interpret their meanings.
this is what I have so far and I am stuck
142+171+125+91+140+125+97+125+162+142+125+117+89+125+140+128/16
19361/16
120.6875
91,97,125,125,125,125,125,128,140,140,142,142,162,171,206
middle term/median 128
mode
125 occurs 5 times
97,125,125,125,125,125,128,140,140,142,142,162,171,206
206-91=115
125+125= 250 1st Q 250/3= 83.33
171+206=377 3rd Q 377/2 =
Answer by edjones(8007)   (Show Source):
You can put this solution on YOUR website! From a spreadsheet:
Sum 2,044
Mean 127.75
Median 125
Mode 125
Midrange (171+89)/2 = 130
.
Q1 (16+1)/4=4.25~4. the 4th number is in descending order is 117=Q1
Q3 3(17)/4=12.75~13 the 13th number is 142=Q3
.
Ed
.
Learn how to use a spread sheet and you will avoid mistakes in addition etc and save a lot of time.
|
|
|
