Answer:
The relative frequency in this category is 0.2
Step-by-step explanation:
The relative fraquency of a category is given by the number of observations in this category divided by the total number of observations.
In this question:
The category of interest has 15 observations.
In total, the population has 75 observations.
So the relative frequency is:

Answer:
After 4 miles driven by cab the amount would be same in both cities.
Step-by-step explanation:
Let the number of miles be 'x'.
Given:
In NYC
Flat fee of cab = $4
Per mile charge = $1.25
Total cab charges is equal to sum of Flat fee of cab and per mile charge multiplied by number of miles.
Framing in equation form we get;
Total cab charges in NYC = 
In Chicago
Flat fee of cab = $6
Per mile charge = $0.75
Total cab charges is equal to sum of Flat fee of cab and per mile charge multiplied by number of miles.
Framing in equation form we get;
Total cab charges in Chicago = 
Now we need to find number of miles driven so that the amount could same in both cities.
Total cab charges in NYC = Total cab charges in Chicago

Combining like terms we get;

using Division Property we will divide both side by 0.5 we get;

Hence After 4 miles driven by cab the amount would be same in both cities.
Answer:
Noah did not make any error
Step-by-step explanation:
The median of a list of strictly increasing numbers is simply the middle number. If there's an even number of numbers in the list, then the median is the average of the middle two terms.
Here, the numbers are 115, 109, 117, 136, 127, 131. When ordered from least to greatest, we get: 109, 115, 117, 127, 131, and 136, which is what Noah got.
Since there are 6 numbers (6 is even), the median will be the average of the middle two numbers, which are 117 and 127: (117 + 127)/2 = 244/2 = 122
So, Noah was correct.
Answer:
f(6) = - 4
Step-by-step explanation:
Substitute x = 6 into f(x) , that is
f(6) = - 6 + 2 = - 4