Answer:
Option C.
Step-by-step explanation:
It is given that the first term of the arithmetic sequence is 8 and second term is 5.
We know that the explicit equation of an AP is
, where n is an integer greater than or equal to 1.
where, a is first term and d is common difference.
So, domain of this explicit equation is all integers where n ≥ 1.
Therefore, the correct option is C.
<span>The data of set X has a greater spread than that of set Y. This only means that the Standard Deviation of data set X is greater than the standard deviation of data set Y. The standard deviation is larger when data is more spread out.</span>
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Work out the total change:
76 - 46 = 30
Divide this by the number of days:
30/5 = 6
As the temperature decreased, it would have a minus value in front of it
Thus, the answer is option B
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Answer:
A) 8.5 miles per gallon
Step-by-step explanation:
Given


Required
The IQR
This is calculated as:

Calculate 



Remove bracket

This means that:
is the mean of 5th and 6th item
From the given data:


So, we have:




Calculate 



Remove bracket

This means that:
is the mean of 15th and 16th item
From the data:


So:



Recall that:


A large interquartile range shows the range in values of the central 50% of the data.