SOLUTION: I am really confused with this one. The book doesn't offer enough explanation. Please help... Calculate the probability of the event Four digits are selected from the digits 1,

Question 48387: I am really confused with this one. The book doesn't offer enough explanation. Please help...
Calculate the probability of the event
Four digits are selected from the digits 1,2,3,4 and a number is formed. Find the probability that the number is greater thaan 3000, assuming digits can be repeated.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Four digits are selected from the digits 1,2,3,4 and a number is formed. Find the probability that the number is greater than 3000, assuming digits can be repeated.
-----------------------------------
The thousands digit must be either 3 or 4: 2 ways to choose
The remaining three digits may be chosen is 4^3=64 ways
Answer 2*64=128
Cheers,
Stan H.
RELATED QUESTIONS
My question is to describe two methods for adding and subtracting linear expressions, but (answered by MathLover1,josgarithmetic)

Show that the point on the unit circle (4/5,-3/5) That is all the book gives for... (answered by josgarithmetic)

Hello, Can someone please help me with this problem, I am just so confused.... (answered by edjones)

hi i am confused on the subtracting of polynomials (5x^5-5x^4-3x^3-5)-(9x^5-3x^4+7x^3-7) (answered by stanbon)

I am having trouble trying to figure out how to work this probability problem. Could... (answered by stanbon)

Rather confused about what's going on here. My book doesn't offer an explanation on what (answered by lwsshak3)

[ I am reposting because there was a typo in my email when I posted the previous question (answered by josgarithmetic,math_tutor2020)

State the number of positive real zeros, negative real zeros, and imaginary zeros for... (answered by rmromero)

So this has really confused me. Can someone help me solve it and offer an explanation? I... (answered by richwmiller,rothauserc)