Question
In: Statistics and Probability
Use the following information from June 17, 2020 to answer the questions below. COVID-19 case data...
Use the following information from June 17, 2020 to answer the questions below.
|
COVID-19 case data by county - Connecticut |
|||||
|
County |
Total Cases |
||||
|
New London |
1,217 |
||||
|
Fairfield |
16,475 |
||||
|
Windham |
579 |
||||
|
Hartford |
11,405 |
||||
|
Litchfield |
1,467 |
||||
|
Middlesex |
1,259 |
||||
|
New Haven |
12,185 |
||||
|
Tolland |
895 |
||||
- Based on the data from 6/17/20, which county is at the 75th percentile for total number of cases by county.
- Based on the data from 6/17/20, what is the percentile rank for New London?
Please show all your work, and show any formulas if used.
Solutions
Expert Solution
( A )
( B )
In this problem, you want to find the percentile rank of the data value 1217 in the data set. The percentile rank represents the percent of numbers in the data set that have value equal or less than 1217.
Take note that there are 8 data values in this data set. It's helpful to sort them in ascending order.
579,895,1217,1259,1467,11405,12185,16475579,895,1217,1259,1467,11405,12185,16475
Of these 8 data values, 3 are less than or equal to the data value 1217. To find the percentile rank of 1217, apply the formula:
Answer : percentile rank for New London is = 38%
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