1-(-4)^2
1-(-4 times -4)
1-(16)
1-16
-15
$4/3=$1.33 per pound.
$9/8 = $1.13 per pound.
The second one is cheaper.
Answer:
Option B is right
Step-by-step explanation:
P(A or B)
In set theory if A and B are two sets we have either A occurs or B occurs or both as
P(A or B) = P(AUB)
This implies that A occurs or B occurs
Probability is calculated as P(A)+P(B)-P(AB)
P(AB) here represents both occurring and this is subtracted as this was added two times
Option A is wrong because this is AB
Option C is wrong because it is not necessary A occurs first
D is wrong because this is A'UB' where A' represents the complement of A
So correct answer out of four options is
B. the probability that in a single trial, event A occurs, event B occurs, or they both occur.
For part 8-71,
a) 2=105
b) 2=55
c) 2=53
d)2=160
