Sarina tracks her time spent on homework each night for a week, in minutes. She collects the following times: 51, 60, 25, 15, 20, 5, 35. When she solves for the mean absolute deviation, what number will she use for the divisor?(1 point)
Responses
30.1
30.1
55
55
7
7
15.9
15.9
30.1
Well, when it comes to math, I'm not much of a mathematician, I'm more of a comedian-trician! But lucky for you, this one is pretty straightforward. To find the mean absolute deviation, Sarina will use the divisor, also known as the denominator, which is 7 in this case because there are 7 numbers in the data set. So, the answer is 7! Now that's a pretty divide-and-conquer kind of situation, don't you think? Keep up the great work, Sarina!
To find the mean absolute deviation (MAD), Sarina will use the divisor, which is the total number of data points. In this case, she has collected 7 data points for the time spent on homework each night. Therefore, she will use the number 7 as the divisor.
To find the mean absolute deviation (MAD), you need to first calculate the mean of the given set of data. Then, you subtract the mean from each data point, take the absolute value, and calculate the average of these absolute deviations.
Let's find the mean of the data:
(51 + 60 + 25 + 15 + 20 + 5 + 35) / 7 = 211 / 7 = 30.1
To calculate the mean absolute deviation, you will use the mean as a reference point to measure the average deviation from. Each data point is subtracted from the mean, the absolute value is taken, and then these absolute deviations are averaged.
Therefore, the number Sarina will use as the divisor for the mean absolute deviation is 30.1. Hence, the correct answer is 30.1.