What is the range of the data set?
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6

Step-by-step explanation:

All you have to do is subtract the smallest number from the biggest number. In this case, that would be 7-1 which is equal to 6. Therefore, the range of the data set is 6.

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15 hours

Step-by-step explanation: X = 1 hour add up all the x's there's 15 x's witch means 15 hours.

step-by-step explanation:

12475909

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for