Question
11 point)
Ethan's class is handing out balloon arrangements consisting of 4 balloons each. Each
balloon has an equally likely chance of being red, blue, or yellow. Ethan created a
spinner to simulate this probability. Here is Ethan's data from 30 trials of 4 spins on
the spinner (r = red, b = blue, y = yellow):
ybrr bybb rbbb rrry rbbb rryy yybb ryry ryyr rbyr ryyr rryy yrby bbyy byyr byyr
byyb rbby ybry rryy rbrr rybb bbbr rrbrybry ryrr rryb rrrb rryr
According to this data, what is the experimental probability that an arrangement will
not contain any balloons that are red?
0.133

5

step-by-step explanation:

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.

5 pm

step-by-step explanation:

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.