Wrong answer iin the statistics course?
Hello, in the statistics course in the 1st practice exam, question five, the sum of the relative frequencies is 101
2 answers ( 0 marked as helpful)
Hi Antonios! We'll take a look right away. Thanks for the heads up!
Hello Antonios,
Thanks for reaching out!
The relative frequency represents the percentage of the total occurrences attributed to Utah alone. Since Utah has a frequency of 6 out of the total 149, its relative frequency is calculated as 6/149 or approximately 4%. The cumulative frequency accumulates the percentages from each preceding entry in the list. It essentially adds up the relative frequencies from the start down to Utah:
-California starts with 77%.
-Virginia adds 3%, bringing it to 79%.
-Arizona adds 5%, making it 85%.
-Nevada adds 9%, reaching 93%.
-Finally, Utah adds its 4%, bringing the cumulative total up to 97%.
Therefore, the cumulative frequency for Utah is 97%, meaning that by the time we account for Utah, we have covered 97% of the entire data set.
Note that we round up the figures. In order to be precise, you have to work with at least two demical places after the dot.
Let me know if you need further clarification!
Best,
The 365 Team
Thanks for reaching out!
The relative frequency represents the percentage of the total occurrences attributed to Utah alone. Since Utah has a frequency of 6 out of the total 149, its relative frequency is calculated as 6/149 or approximately 4%. The cumulative frequency accumulates the percentages from each preceding entry in the list. It essentially adds up the relative frequencies from the start down to Utah:
-California starts with 77%.
-Virginia adds 3%, bringing it to 79%.
-Arizona adds 5%, making it 85%.
-Nevada adds 9%, reaching 93%.
-Finally, Utah adds its 4%, bringing the cumulative total up to 97%.
Therefore, the cumulative frequency for Utah is 97%, meaning that by the time we account for Utah, we have covered 97% of the entire data set.
Note that we round up the figures. In order to be precise, you have to work with at least two demical places after the dot.
Let me know if you need further clarification!
Best,
The 365 Team
