Answer:
b. There is a 95% chance that the true proportion of teenagers who use Mybook as their primary social network site is in the interval (0.2964, 0.9036).
Step-by-step explanation:
Hello!
In general, a 95% confidence interval for the population proportion can be interpreted as: There is a 95% chance (or confidence) that the interval will contain the true value of the proportion.
(Remember the confidence level of 95% means that if you were to make 100 intervals for the population proportion, 95 of them will contain its true value)
The estimated parameter is the population proportion of teenagers that use Mybook as their primary social network site.
With this in mind then you can say that there is a 95% probability that the interval (0.2964, 0.9036) will contain the true value of the proportion of teenagers that use Mybook as their primary social network site.
The correct answer is: b
I hope this helps!
We want to write a linear equation for the recipe that describes the amount of oil that we need in terms of the vinegar.
The linear equation is: L = 3*V
So we know that the recipe calls for 1/3 tbsp of vinegar for every tbsp of oil.
Defining:
- V = amount of vinegar used
- L = amount of oil used.
The original equation is written as:
V = (1/3)*L
Now we want to rewrite this for L, this means, isolating L.
To do that we just multiply both sides by 3, so we get:
V*3 = (1/3)*3*L
V*3 = L
L = 3*V
This equation says that we will use 3 times more oil than vinegar.
If you want to learn more about linear equations, you can read:
brainly.com/question/4025726
They will ring again together at 10:15am. Because the common factor for 40, 48 and 60 is 240, which means 240 minutes, that equals to 4 hours. Hence 4 hours after 6.15am is 10.15am.
Hope this helps.
