Answer:
all of them except for compass
Step-by-step explanation:
eeeeerrrr eeeerrr eeeerrrrr
Parentheses. Exponents. Multiplication Division. Addition Subtraction.
2) 6 x (11 - 5)- 7^2
6 x (6) - 7^2
6 x 6 - 49
36 - 49
-13
3) (40 - 2^2) / (-4 + 6)
(40 - 4) / (-4 + 6)
(36) / (2)
36/2
13/1
13
4) (66 - 6) / 6 - 2^2
(60) / 6 - 2^2
60 / 6 - 4
60 / 2
30 / 1
30
Answer:
Systematic sampling
Step-by-step explanation:
An EPA contractor needing to test the concentration of a substance in ten samples out seventy samples provided form a single source at regular time intervals.
For the contractor to effectively carry out the testing he has to employ a Non-probability system of sampling which is called Systematic sampling, because in systematic sampling we can assume the population size (x ) which in this case is 70 and the sample size( n ) to be 10
He will have to select ; ( x / n )^th of the sampling frame for best results
Answer:
10.5
Step-by-step explanation:
2⅝×4=10.5
..............
Answer:
oqkrmflwmpoo,d;,apock0-k23[pkpok0okpokp[lpokpo,;'mpm;l,kjpok;,pok0ol;ppppo;l[p[pl[pl[p[pp[pk[pp,o,o,o,l,l,l,,;;;,;,;,plplplpp
Step-by-step explanation:
