Answer:
a. 0.6^x
b. 0.3376
c. 0.6624
d. 2 boxes
Step-by-step explanation:
probability that the selected box of cereal has a prize (P)is 0.4
probability that the selected box of cereal has no prize(p') is 1-0.4 = 0.6
a. probability that you purchase x boxes that do not have the desired prize
= 0.6 *0.6 *0.6 *....up to the x times
=0.6^x
(b) probability that four boxes are purchased =
(c) probability that you purchase at most four boxes
=1 - probability that four boxes are purchased
= 1- 0.3376 = 0.6624
(d) The desired prize do you expect to purchase:
≈2 boxes
So subtract 2q from both sides.
This will cancel out the 2q on the left.
So the equation right now should be 10=5q.
Now divide each side by 5.
10/5=2
2=q.
That's the answer! Hope this helped!!
Answer: Approximately 20 days.
Step-by-step explanation: 558 divided by 28, is 19.92 rounding to 20.
Answer:
No
Step-by-step explanation:
No, the cost will not always be proportional. This is because after the first dozen, the equation will be different.
Answer:
Step-by-step explanation:
Let the number be x.
3x - 6 = 2x
x - 6 = 0
x = 6