Answer:
could not be the same
Step-by-step explanation:
Given that approximately US drivers are agewise as follows:
<25 13.2
25-45 37.7%
>45 49.1%
Observations are made for a sample of 200 fatal accidents.
Let us create hypotheses as
(Two tailed chi square test at 5% significance level)
Age <25 25-45 >45
Expected 13.2 37.7 49.1 100
Observed 42 80 78 200
Expected no 26.4 75.4 98.2 200
Chi square 9.218181818 0.280636605 4.155193483 13.65401191
df = 2
p value = 0.001084
Since p <0.05 we reject null hypothesis
At the 0.05 level, the age distribution of drivers involved in fatal accidents within the state could not be the same as the age distribution of all US drivers as there seems to be significant difference.
Answer:
1
Step-by-step explanation: PEMDAS
1. 3 divided by 1/3 = 9
2. 9-9= 0
3. 0+1= 1
hope this helps! :-)
Answer:
The answer to your question is below
Step-by-step explanation:
A) 2x > -6
x > -6/2
x > -3
It must be a graph with an open circle starting at -3 and then to the right.
It is the first graph.
B) x - 4 < -7
x < -7 + 4
x < -3
The graph must be an open circle starting at -3 and pointing to the left.
it is the second graph.
C) 6 + x ≤ 3
x ≤ -6 + 3
x ≤ -3
The graph must be a closed circle starting at -3 and pointing to the left.
it is the forth graph.
D) -x - 5 ≤ -2
-x ≤ -2 + 5
- x ≤ 3
x ≥ -3
The graph must be a closed circle starting at -3 and pointing to the right.
It is the third graph.
To find point L, it helps to draw it out (see the picture below)
We can then find the distance by using the distance formula:
d=<span>√(x2-x1)² + (y2-y1)²
LP=</span><span>√(-5 - -5)² + (7 - -4)²
LP=</span><span>√0 + (11)²
LP=</span>√121
LP=11
Sum of all the angles in a triangle = 180°
(2x + 5) + (6x - 10) + (x + 5) = 180
2x + 5 + 6x - 10 + x + 5 = 180
Combine like terms:
9x = 180
Divide by 9:
x = 20
Answer: x = 20°
