Asurvey was given to 50 people to determine if they prefer white or brown rice at a local chinese restaurant. given the following reasons, determine which fulfills one of the requirements for a binomial distribution.

a. the study has a finite number of trials.
b. the study is conducted randomly.
c. the survey focuses on food only from one restaurant.
d. the study is conducted locally.

a. the study has a finite number of trials.

Step-by-step explanation:

A binomial experiment is an experiment which satisfies the following four conditions:

Hence, option a. "the study has a finite number of trials." is one of the requirements for a binomial distribution.

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation: