Ineed this !

erik is performing a marble experiment in math class. his teacher places an equal number of black, red, and white marbles in a bag. then, erik randomly takes out a marble, records the result, and puts the marble back in the bag. each of the first four times erik takes out a marble, he gets a black marble.

a. what is the theoretical probability of erik picking a black marble next time? based on erik's results, what is the experimental probability of erik picking a black marble next time?
b. explain the difference between the two probabilities you found in part a.
c. what is the theoretical probability and likelihood of getting four black marbles in a row?

answer:

experimintal=number of event occurnces/total number of trialsso 4/4 or 100% is experimentalsoequal number of red and black and white1/3 of the bag is blacktherefor the probablity of picking a black marble is 1/3a. 1/3 is theoretical, 4/4=experimentalb. differnce? dunno sorryc.   4 in a row1/3*1/3*1/3*1/3=1/81

step-by-step explanation

an altitude of 15,000 feet

step-by-step explanation:

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.