Answer:
0.6603 = 66.03% probability that it will be sent with the ABC Speedy Delivery Company and arrive on time.
Step-by-step explanation:
Conditional Probability
We use the conditional probability formula to solve this question. It is

In which
P(B|A) is the probability of event B happening, given that A happened.
is the probability of both A and B happening.
P(A) is the probability of A happening.
In this question:
Event A: Sent by ABC Speedy Delivery Service.
Event B: Arrived on time.
The probability that any given parcel will be sent by the ABC Speedy Delivery Service is 0.71.
This means that 
The probability that the parcel will arrive on time given the ABC Speedy Delivery Company was used is 0.93.
This means that 
Find the probability that it will be sent with the ABC Speedy Delivery Company and arrive on time.
This is
. So

0.6603 = 66.03% probability that it will be sent with the ABC Speedy Delivery Company and arrive on time.
Answer:
No
Step-by-step explanation:
the quantities are not proportional because 7/8 is greater than 2/4. Hope this helps!
Answer:
3-6=3
Step-by-step explanation:
Answer:
3450
Step-by-step explanation:
(2.3x10^4)x(1.5x10^-2)
(2.3x10,000)x(1.5x.1)
23,000x.15
3450
The sample proportion of the the students that took fewer than the mean number of electives is given by the number of people who took less that the mean number of electives (i.e. 7.63) divided by the total number of students in the sample (i.e. 19). The total number of people who took less than 7.63 electives is 10. Therefore, the required sample proportion is 10 / 19.
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