Answer:
Thank you for the free-points!!! <3
Step-by-step explanation:
Answer:
Use both methods to calculate the sale price of an item that costs $140 and has a discount of. 40%. 140 x.40 = 56. 140-56 +84. 140x.60 = $84.
Step-by-step explanation:
C
Answer:
Method A.
Step-by-step explanation:
For solving this question we need to find out the z-scores for both methods,
Since, the z-score formula is,
Where, 
is mean,
is standard deviation,
Given,
For method A,
Thus, the z score for 34 is,
While, for method B,
Thus, the z score for 34 is,
,
Since, 
Hence, method A is preferred if the procedure must be completed within 34 minutes.
Answer:
0
Step-by-step explanation:
P(E|F) = P(E and F)/P(F) = 0/0.2
Events that are mutually exclusive exclude each other. That means if one
occurs, the other is excluded. That means if one occurs, the other cannot
occur.
So that tells us that the probability of them both happening is impossible,
which mean P(E and F) = 0
