Answer:
D
Step-by-step explanation:
the mean will describe the center and the range will describe the spread, I know this because the mean is in the middle, and the only other thing for the range would be the spread.
Answer:
1. increase in population and increase in jobless = causation
2. increase in snow fall and increase in personal income = no relationship
3. increase in literacy rate and increase in doctors = correlation
Step-by-step explanation:
1. people without jobs is CAUSED by a population spike
2. weather cannot affect your paycheck, so no relationship
3. more doctors means they scored higher on literacy, but it's iffy so correlation
Hope this helps :)
Answer:
6.6, 7.2, 7.8 all i did was add 0.6
Step-by-step explanation:
Answer:
The required probability is 0.988.
Step-by-step explanation:
Consider the provided information.
Based on a poll, 67% of Internet users are more careful about personal information when using a public Wi-Fi hotspot.
That means the probability of more careful is 0.67
The probability of not careful is: 1-0.67 = 0.33
We have selected four random Internet users. we need to find the probability that at least one is more careful about personal information.
P(At least one careful) = 1 - P(None of them careful)
P(At least one careful) = 1 - (0.33×0.33×0.33×0.33)
P(At least one careful) = 1 - 0.012
P(At least one careful) = 0.988
Hence, the required probability is 0.988.
The result may be higher because of the convenience bias in retrieving the sample. Because the survey subjects volunteered to respond not random.
Answer: Transitive Postulate of Inequality (last option)
Explanation:
Let's say we have a vacation where we go from City A, to City B, then to City C. We can use the notation 
. If all we cared about was the first and last cities, then we basically say 
taking a shortcut so to speak.
This analogy is useful to describe the transitive property.
The equality version is where if we had a = b and b = c, then a = c.
The inequality version is where if we had a < b and b < c, then a < c. In this case, c = 2.
In a sense, its like linking together metal chains. A leads to B which leads to C. So we can just jump from A to C.
It might help to draw out a number line and pick values for a and b like a = 0 and b = 1. That way you can see how a < b, b < c and a < c all tie together.
