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!
Answer:
x=0
Step-by-step explanation:
(5 x 6) - (5 x 1)= 5 x
5x X 6-5x X 1=5x
30x-5 X 1X x=5x
30x-5x=5x
25x=5x
25x-5x=5x-5x
20x=0
20X/20 = 0/20
x=0
Answer:
<em>128</em>
Step-by-step explanation:
<em>Method A.</em>
The volume of the prism is 2 cubic units.
Each cube has side length of 1/4 unit.
The volume of each cube is (1/4)^3 cubic unit.
The volume of each cube is 1/64 cubic unit.
To find the number of cubes that fit in the prism, we divide the volume of the prism by the volume of one cube.
(2 cubic units)/(1/64 cubic units) =
= 2/(1/64)
= 2 * 64
= 128
<em>Method B.</em>
Imagine that the prism has side lengths 1 unit, 1 unit, and 2 units (which does result in a 2 cubic unit volume.) Since each cube has side length 1/4 unit, then you can fit 4 cubes by 4 cubes by 8 cubes in the prism. Then the number of cubes is: 4 * 4 * 8 = 128
Answer:
(1, 0 ) and (3, 6 )
Step-by-step explanation:
we are looking in the table for values of x that give both f(x) and g(x) the same value.
x = 1 → f(x) = g(x) = 0
x = 3 → f(x) = g(x) = 6
then the solutions to f(x) = g(x) are
(1, 0 ) and (3, 6 )
Answer:
Amount of money paid by each student is equal to 
Step-by-step explanation:
Given: A group of children bought 
presents that cost 
each and a card that cost 
.
To find: amount of money each student paid in terms of 
Solution:
Cost of each present 
Cost of presents 
Cost of a card 
Therefore,
Amount of money paid by each student in terms of = Cost of presents + Cost of a card
