What is the quotient? $18,360 ÷ 1000
1 answer:
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Answer:
y=-11.88x-39.93
Step-by-step explanation:
Plot the data
on the coordinate plane using graphing calculator. Then use linear approximation y=ax+b and determine that a=-11.88, b=-39.93.
The line that best fits these data is
Answer:
a)
And we can find this probability using the complement rule and the standard normal table or excel:
b)
And we can find this probability using the standard normal table or excel:
c) For this case we have a total of 868 cups and we know that the fraction of cups that will be overflow is 0.159, so then the expected number of cups overflow would be:
Step-by-step explanation:
Previous concepts
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".
Part a
Let X the random variable that represent the amount of soft frink of a population, and for this case we know the distribution for X is given by:
Where and
We are interested on this probability
And the best way to solve this problem is using the normal standard distribution and the z score given by:
If we apply this formula to our probability we got this:
And we can find this probability using the complement rule and the standard normal table or excel:
Part b
We are interested on this probability
And the best way to solve this problem is using the normal standard distribution and the z score given by:
If we apply this formula to our probability we got this:
And we can find this probability using the standard normal table or excel:
Part c
For this case we have a total of 868 cups and we know that the fraction of cups that will be overflow is 0.159, so then the expected number of cups overflow would be:
Answer:
The loss on the sale of 50 type M cars is $8000, and the loss is decreasing at the rate of $500 per 50 type M car sold.
Step-by-step explanation:
Given
Required
Interpret
From the question, we understand that:
Number of cars
Profit on x cars
Using the above as a point of reference,
Rate of loss per x cars
So, the interpretations are:
A loss of 8000 on 50 cars
The loss rate is a reduction of 500 per 50 car