Question

the following data are the numbers of miles of bike lanes per square mile for a sample of 10 of the top 20 cities with the most miles of bike lanes.complete parts (a) though (e).1.8 2.6 4.3 3.7 3.83.9 1.5 2.6 1.6 3.8of the 10 cities, 5 have at most 3.0 miles of bike lanes per square mile.(type a whole number.)c. find the proportion of the 10 cities that have at least 3.8 miles of bike lanes per square mile.of the 10 cities, 0.4 have at least 3.8 miles of bike lanes per square mile.(round to one decimal place as needed.)d. find the 80th percentile of the 10 observations.the 80th percentile of the 10 observations is 3.8 miles of bike lanes per square mile.(type an integer or a decimal. do not round.)e. philadelphia has more miles of bike lanes per square mile than any other of these 10 cities. at least how many miles of bike lanes per square mile is that?philadelphia has at least □ miles of bike lanes per square mile.(type an integer or a decimal. do not round.)

Explanation:

Step1: List and sort the data

First, list all the given data points: $1.8, 2.6, 4.3, 3.7, 3.8, 3.9, 1.5, 2.6, 1.6, 3.8$.
Sort them in ascending order: $1.5, 1.6, 1.8, 2.6, 2.6, 3.7, 3.8, 3.8, 3.9, 4.3$

Step2: Identify the maximum value

The largest value in the sorted dataset is the highest number of bike lanes per square mile among the 10 cities. Philadelphia has a higher value than this maximum.
<Expression>
$\text{Max value} = 4.3$
</Expression>

Answer:

Philadelphia has at least $4.3$ miles of bike lanes per square mile.