Find the mean and median of the data set. If necessary, round your answer to the nearest cent. Suppose the average yearly prices for an ounce of gold during a 10-year period are as follows:

$279.79, $271.72, $310.41, $364.06, $410.40, $445.42, $604.14, $696.07, $872.64, $973.03

The mean is $
.

The median is $
.

three-fourths of an hour

36÷48=0.75

0.75=

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

hard

step-by-step explanation: