Answer:
B, Josef is confused about the range and the interquartile range.
Step-by-step explanation:
You have to make the box plot using the numbers given
Find the IQR *interquartile range* and the difference between the max and the minimum numbers.
For the cars the IQR is: 6
The range for the cars is: 12
The IQR of the minivan is: 3
The range of the minivan is: 12
The ranges are the same but IQR of the cars is bigger, that's where Josef got confused.
Answer:
P(x) = - 1.7x + 55
Step-by-step explanation:
x denotes the years that have passed since 2000. So for year 2000, x = 0
Therefore we have that when x₁ = 0, y₁ = 55. From the information given by the problem we know that the slope m is -1.7.
So by substituting these values in the formula y-y₁ = m( x - x₁) we get:
y - 55 = -1.7 (x - 0)
y - 55 = -1.7x
y = - 1.7x + 55
Thus our function P(x) that models the percentage of residents who regularly used the news outlet x years after 2000 is
P(x) = -1.7x + 55
Answer:
1/4
Step-by-step explanation:
We can find the slope by using the slope formula
m = ( y2-y1)/(x2-x1)
= ( 4 -3)/( 6-2)
= 1/4
Since Ellen drove a total of 80 miles, and for 2 hours.
Her speed is = 80/2 = 40 miles/hour
So Ellen drove for 40 miles/hour.
Since Carin drove 5 miles per hour faster than Ellen, the he drove = (40 + 5) = 45 miles/hour.
So Ellen drove 40 miles/hour and Carin drove 45 miles/hour
