What is the measurement of
1 answer:
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Answer:
a
b
Step-by-step explanation:
Considering question a
From the question we are told that
The mean is
The standard deviation is
The standard error of mean is mathematically represented as
=>
=>
Generally the probability that the mean volume of a random sample of 144 bottles is less than 12 oz is mathematically represented as
From the z table the area under the normal curve to the left corresponding to -0.3425 is
=>
Considering question a
From the question we are told that
The mean is
Generally the probability that the mean volume of a random sample of 144 bottles is less than 12 oz is mathematically represented as
From the z table the area under the normal curve to the left corresponding to -1.0274 is
=>
Answer:
The answer to your question 4 hours
Step-by-step explanation:
Data
David = 16 mph
Corey = 28 mph
first time = 3 hours
time = ?
Formula
solve for distance
distance = v x time
Process
1.- Calculate the distance David travelled during 3 hours
distance = 3 x 16 = 48 m
2.- Write equations for the distance travelled by David and Corey
David = 16t + 48
Corey = 28t
3.- Equal both equations
16t + 48 = 28t
4.- Solve for t
16t - 28t = - 48
-12t = -48
t = -48/-12
5.- Result
t = 4 hours