Of 26 students, 13 play the violin and 21 play the guitar. Each student plays the violin or guitar. If 8 students play both viol
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<h3>Answer: 6.282</h3>
Explanation:
Refer to the table below. I've added a third row where I multiplied each x value with its corresponding frequency value f. We can refer to this row as the xf row.
Once we know the xf values, we add them up to get 245.
We'll then divide that result over the sum of the frequency values (add everything in the second row). The sum of the frequency values is 39.
So the mean is approximately: 245/39 = 6.282051 which rounds to 6.282
Notice that this mean value is fairly close to the x value which has the highest frequency.
Joel would have to go at least 10 times per month to make the 50 dollars per month the cheapest one.