Answer:
Step-by-step explanation:
Number of drivers Screened = 671
Number Arrested for Driving While Intoxicating = 7
If the W denotes the event of screening a driver and getting someone who is intoxicated.
The Probability of W,
- The Probability is the probability of the event of screening a driver and getting someone who is not intoxicated. Simply put, it is the Probability of the Complement of W.
From Probability Theorem,
Answer:
Step-by-step explanation:
The formula of a slope:
Substitute the coordinates of the given points (-1, -1) and (2, -2):
Using the z-distribution, it is found that the lower limit of the 95% confidence interval is of $99,002.
<h3>What is a z-distribution confidence interval?</h3>
The confidence interval is:
In which:
- is the sample mean.
- is the standard deviation for the population.
In this problem, we have a 95% confidence level, hence, z is the value of Z that has a p-value of , so the critical value is z = 1.96.
The other parameters are given as follows:
Hence, the lower bound of the interval is:
The lower limit of the 95% confidence interval is of $99,002.
More can be learned about the z-distribution at brainly.com/question/25890103
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Answer:
These are the answers for question 3 only.
Step-by-step explanation:
3)
a. 3 <u>></u> -3
b. 12 <u><</u> 24
c. -12 <u>></u> -24
d. 5 <u>></u> -(-5) - (I'm not sure about this one)
e. 7.2 <u>></u> 7
f. -7.2 <u><</u> -7
g. -1.5 <u>=</u> -3/2
h. -4/5 <u>></u> -5/4
i. -3/5 <u>=</u> -6/10
j. -2/3 <u><</u> 1/3
<span>hi, </span>
<span>you can determine it by seeing if y/x = a constant value, in other words if y = (a constant value) x </span>
<span>then you say that y varies directly with x, and you can see that : call the constant k </span>
<span>then y/x is supposed to be k in all values </span>
<span>6/3 = 2 </span>
<span>24/12 =2 </span>
<span>96/48 = 2 </span>
<span>384/192 = 2 </span>
<span>it worked the ratio between x and y is constant so y varies directly with x ( y = 2x) and that constant k =2 </span>
<span>p.s. you can also say that x varies directly with y but in that case it becomes x/y =constant and that constant say c is 1/2 (x = (1/2)y)) </span>
<span>hope u understand.
Source- </span>https://answers.yahoo.com/question/index?qid=20110813112602AApHZtQ