Hi there! Hopefully This helps!
Answer: The mean number of this data set is 43. The mean represents the average number of minutes Julio practiced on his trumpet for 6 days.
Explanation:
To find the "mean" you need to count how many numbers are in the data set. Then add up all the numbers in the data set.
In this case you have six numbers in the data set, and all the numbers added up together(21+30+39+43+58+67) are 258.
After adding up all the numbers, divide them by how many numbers are in the data set.
258/6 = 43.
