Solving for the value that makes both true
dvide the left equation by 3 to simplify
3x-2y=1
oh, they are same equaiton
inifnite solutions
the solutions are the points on the line y=(3/2)x-(1/2)
Answer:
11. This is totally correct (See attached image)
12. Consider Age.
Suppose, we want to test H0: mean age(White)=mean age(Black) against H1: mean age(White)>mean age(Black) and we find the one sided p value (which is just half of the 2 tailed p value) less than 5% and hence the difference is significant
Consider Father education.
Suppose, we want to test H0: mean years of father's education(White)=mean years of father's education(Black) against H1: mean years of father's education(White)>mean years of father's education(Black) and we find the one sided p value (which is just half of the 2 tailed p value) less than 5% and hence the difference is significant
Consider Highest year of school completed.
Suppose, we want to test H0: mean completion(White)=mean completion(Black) against H1: mean completion(White)>mean completion(Black) and we find the one sided p value (which is just half of the 2 tailed p value) less than 5% and hence the difference is significant
Thus, we find significant difference with respect to education and life expectancy. However, it is difficult to comment on racial inequality, it requires further information on whether equal opportunity was available for both and some related administrative information.
Answer:
3 to the fourth power, which equals 81.
Step-by-step explanation:
Answer:
540
Step-by-step explanation:
540= 18% of 97.2
Answer:
The probability that exactly three of them are comfortable with delivery by drones is 0.2583.
Step-by-step explanation:
Let <em>X</em> = number of consumers comfortable having drones deliver their purchases.
The probability of the random variable <em>X</em> is, P (X) = <em>p</em> = 0.43.
Then <em>q</em> is, <em>q</em> = 1 - p
A sample of <em>n</em> = 5 consumers are selected.
The random variable <em>X</em> follows a Binomial distribution with parameters <em>n</em> and <em>p</em>.
The pmf of <em>X</em> is:

Compute the value of P (X = 3) as follows:

Thus, the probability that exactly three of them are comfortable with delivery by drones is 0.2583.