Hi there! Hopefully This helps!
<h2><em>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.</em></h2>
Explanation:
<u><em>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. </em></u>
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.
<u><em>After adding up all the numbers, divide them by how many numbers are in the data set.</em></u>
258/6 = 43.
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I think 1 hour about I do not have enough info to know of it is right or not.
Answer:
7.68
Step-by-step explanation:
Answer:
it is 5
Step-by-step explanation:
the second number is the y intercept
Answer:
5
Step-by-step explanation:
Given :
Observed values = 5, 10, 15
Expected freqencies = 10
χ² = Σ(observed - Expected)² / Expected
χ² = (5-10)²/10 + (10-10)²/10 + (15-10)²/10
χ² = 25/10 + 0/10 + 25/10
χ² = 2.5 + 0 + 2.5
χ² = 5
