To solve this problem, we use the formula:
z = (x – u) / s
where z is the z score value which can be obtained from
the tables, x is the sample value, u is the mean = 6.3 min, and s is the std
dev = 2.2 min
at P value = 0.90, the z = 1.28, finding for x:
x = z s + u
x = 1.28 * 2.2 + 6.3
x = 9.116
at P value = 1.0, the z = 3.49, finding for x:
x = z s + u
x = 3.49 * 2.2 + 6.3
x = 13.978 ~ 14
Therefore the longest 10% calls last about 9.1 minutes to
14 minutes
<h2>Verbal Phrase to Mathematical Phrase</h2><h3>
Answer:</h3>
<h3>
Step-by-step explanation:</h3>
Let that number be 
.
The quotient of a number and 
is 
.
"Increased" is just another term for "plus (+)" so 
increased by The quotient of a number and is 
And it tells us that it is 
so it must be
Answer:
Someone calculated his or her average speed to 7.46 Miles per hour (mph) This calculation will help you calculate your average speed when you have covered a certain distance over a certain time.
Step-by-step explanation:
The re
sults your produce from the speed calculator input will come out in a variety of forms You can also find a report on your speed in terms of kilometres per hour, meters per minute and metres per second. There is also a report on the time it takes you to travel certain distances. This report shows you min:sec per kilometre, seconds per 100 .
Times the two to get your answer.
Answer:
imma go wit B. I mean thats my guess
