The average change is 3 degrees per hour.
To calculate the average of any data we have to divide the change by the time taken for that change.
let us suppose there is a data 4,5,6,7 and 8.
Average of the data will be the sum of data divided by the number of terms.
Average=
=
= 6
So now we will calculate the average change in temperature per hour,
Given that there is a fall of 12 degrees in 4 hours.
Average change per hour=
= 3 degrees per hour
So, the required change is 3 degrees per hour.
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Hey,just to let you know that they is no picture as I can’t answer it.
147.63 - 19.95 = 127.68, this is the cost of the miles driven, 127.68÷0.96 = 133 miles
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
=>
7 times is 8 so 9 because I like it so 8 answer 78
