Slope-Intercept Form: y=mx+b
Standard Form: ax+by=c
Point- Slope: (y-y1)= m(x-x1)
There are multiple answers to your question-
- If you are only missing b(the y-intercept) but are given a set of points, plug the points into x and y and solve for b.
- If you are only missing the slope(m) but are given a set of points, plug the points into x and y and solve for m.
- If you are given the standard form/point-slope form, change the equation to slope intercept form.
- If you are given an complete form(there is an x and y; no missing variables), but are not sure what it is, plug in some numbers in x to find y, then graph.
Answer:
d. There is a 98% chance that the true proportion of customers who click on ads on their smartphones is between 0.56 and 0.62.
Step-by-step explanation:
Confidence interval:
x% confidence
Of a sample
Between a and b.
Interpretation: We are x% sure(or there is a x% probability/chance) that the population mean is between a and b.
In this question:
I suppose(due to the options) there was a small typing mistake, and we have a 98% confidence interval between 0.56 and 0.62.
Interpreation: We are 98% sure, or there is a 98% chance, that the true population proportion of customers who click on ads on their smartphones is between 0.56 and 0.62. Option d.
It can be both.
as there is no length of height or hypotenuse...
Answer:
the first one is the answer, with maybe the third if you can choose multiple.
Step-by-step explanation:
Let's go throught hese one at a time. First though it is important to note that the poitns look like they are going upward. So we want a relationship that it makes sense as one increases so does the other.
the amount of money made made compared to the amount of items sold
So, pretending we run a store. Does it make sense that if we make more money more items were sold? I would say so.
the amoutn of ink left in a pen compared to the time using it
Doe sit make sense that as the amount of ink increases the time using it increases? i would say no, because ink usually decreases the more it is used.
the amount of money in your account compared to the number of stores that you shop at
Does it make sense that if you have more money in your account you shop at more stores? I think so, though the first one still makes the most sense if you can only pick one. Since it doesn't seem directly to imply that, I would say it makes more sense that you just but more in general, not necessarily from more stores.
the number of goals scored in a soccer match compared to the number of red cards given
does it make sense that more goals would also have more red cards? i don't think so, though I don't know soccer that much. it doesn't seem like goals mean there should be any more red cards.
So in total it seems like the first one is the answer, with maybe the third if you can choose multiple.
