Question

a scientist wants to find the average mass of fish living in a large pond. so she will use the masses of 52 fish from the pond to find the average mass. answer the questions below. (a) which unit(s) could be used for the unit of measurement? check all that apply. seconds grams hours kilograms minutes (b) which of the procedures below would be the best way to find the average mass? pick 52 fish from a shallow region of the pond and estimate their masses. pick 52 fish from a shallow region of the pond and weigh each of them. randomly pick 52 fish from the entire pond and weigh each of them. randomly pick 52 fish from the entire pond and estimate their masses.

Explanation:

(a)

The problem is about units for mass. Seconds, hours, and minutes are units of time. Grams and kilograms are units of mass.

To get an accurate average mass, the sample should be random (to represent the whole pond) and measured precisely (weighing instead of estimating).

Answer:

grams, kilograms

(b)