Answer:
Yes. The city has a lower proportion of accidents by 16-year-old male drivers than the national proportion (16.7% compared to 21%).
Step-by-step explanation:
a) Data and Calculations:
Number of 16-year-old males involved in driver accident during year 2000 = 210
Sample number of drivers = 1,000
National rate of accidents for 16-year-old males for every 1,000 drivers = 21% (210/1,000 * 100)
Random sample of 16-year-old male drivers in a Midwest city = 150
Number of them involved in driver-accidents = 25
Proportion of 16-year-old males involved in driver-accidents = 25/150 * 100 = 16.7%
The city's 16.7% proportion is lower than the national proportion of 21%.
Answer:
Step-by-step explanation:
The given equation is:
We have to simplify it and convert to the product form, therefore taking the common terms from the given expression, we get
Now, taking 
common from all the terms, we get
which is the required product form of the given expression.
Answer:
4/9
Step-by-step explanation:
Multiply each answer choice by 3/4 or 1/3 and they will all be wrong except for 4/9.
3 x 4 = 1/3
so 4/9
Answer:
49开
Step-by-step explanation:
Y=7 becuase 5+2 IM ASSUMING is 7 so the value of y=7
