Amy would have spent $22.5 on her books (assuming you meant $10 total, not $10 per book)
The should be 158 ways, because 9*8+8*7+6*5=158.
Answer:
9
Step-by-step explanation:
4/6 = 1.5, 1.5(6)= 9
Answer:
<u><em>D:</em></u> Each point (or pair) in a proportional relationship must share the same difference.
Answer:
a) S = {1, 2, 3}
b) P(odd number) = 
c) No
d) Yes
Step-by-step explanation:
a) The sample space is the set of all possible outcomes. By definition, the elements of a set should not be repeated. Hence, the sample space S = {1, 2, 3}
However, the sample is not equiprobable because each element has different probabilities.
b) P(odd number) = 
Note that the odd numbers are 1 (on three faces) and 3 (on one face).
c) The fact the die has been biased does not change the possible outcomes. It only changes the probability of getting any given number.
d) Because the 3-face has been loaded, this probability changes. In fact, it is calculated thus:
Let's assume the probability for 1 or 2 is
. Then that of 3 is
(because it is twice the others). The sum of probabilities must be 1.



P(odd number) =
Prob(1) + Prob(3)
=
= 