The following frequency distribution shows the year tuition (in 1000s) of a sample of private colleges.
For the data below, compute the mean yearly tuition.
Yearly Tuition | Frequency
12-16 - 5
17-21 - 4
22-26 - 3
27-31 - 2
2007-05-23 01:41:48 · 4 answers · asked by Maemae 3 in Science & Mathematics ➔ Mathematics
For the first private college:
12+16=28
28/2= 14
14*5= 70
do the same to find for the other private colleges:
The result is
14-70
19- 76
24- 72
29- 58
the sum of f * x is
70+76+72+58= 276
the sum of the frequencies is
5+4+3+2=14
mean=276/14
=19,71
2007-05-23 01:54:47 · answer #1 · answered by iyiogrenci 6 · 1⤊ 0⤋
The answer is 19.71. You take the avearge of each table eg for table one avearge is (12+16)/2= 14 & multiply by the frequency of it . Do that for each table & add up . Divide the sum of all multiples by total frequency i.e 5+4+3+2=14.
2007-05-23 08:56:41 · answer #2 · answered by ATLGUY 1 · 0⤊ 0⤋
(5*14 + 4*19 + 3*24 + 2*29) / 14 = 19.7
2007-05-23 08:50:19 · answer #3 · answered by Anonymous · 1⤊ 0⤋
The mean is calculated by adding all the numbers up and dividing them by how many there are
2007-05-23 08:47:48 · answer #4 · answered by Anonymous · 0⤊ 1⤋