Mrs. Chauvet has an unfair number cube that lands with 6 facing up 40% of the time.
Let X = the number of times that she rolls a 6 among 3 trials. Here is a binomial probability table for this setting.
X
0
1
2
3
P(X)
1(0.6)³
3(0.4)(0.6)2 3(0.4)²(0.6)
1(0.4)³
one success and two
Complete this statement:
X = 1 means that we roll exactly ✓one 6 in the 3 trials. That means we have
failures.
