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.
What is P(X= 1)? Enter your answer to 3 decimal places.
Recall:
P(X = k) = ( 2 )p^(1 − p)^
P(X = 1) = ( 3 )(0.4¹ (0.65)² = [
-p)^-k
X
P(X)
0
0.216
4
1
2
3
