Ofind a simple random sample, number the justices from 1 to 17. using technology, you randomly generated the following numbers. use these numbers to obtain a simple random sample of size 4. use the sample to determine the sample mean and sample standard deviation ages.

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

l' jhl jje f id bid b e iueb v jhdvb vh ei uf djbduv evb                                                                                                                                   8gfdgsfhjk.,l/ uh   dv eb b