12.34=13
It should take 13 balloons
Explaination
2 balloons can left 1 ounce there is 0.035274 ounces in a gram so your take 0.035274 times 350 and get 12.3459 and just round and that’s 13 balloons
Hope it’s right!
The correct answer is a representative portion of a universe in which each member of the universe has an equal chance of being included
A random sample is a subset of individuals (the sample) randomly selected from a larger set (the population) by a process that ensures that: All individuals in the population are equally likely to be chosen for the sample.