When designing an experiment a benefit of larger sample sizes would be a. variables b. representative data c. time per group d. control groups

B. representative data

Explanation:

An experimental design is desire to accumulate the survey data or samples of large size this is because of the fact that the large sample size is expected to give more reliable results with good precision. But it may cost more time and money for conducting a research or experiment. Hence, the outcome data will be more representative for the variables used for the comparison and analysis.

the answer is 3.1 his answer is wrong mines is right

r = ρ x length / area  

ρ = r x area / length  

ρ is in ohm-meters  

in basic units, it is m³kg/s³a²  

i think this is it.