solution:
a) The population of interest is all the adults
b) The parameter of interest is p, the proportion of adults who own a cell phone
c) The statistic is the proportion, p^, of the sample of 1572 adults who own a cell phone. The value of the sample proportion is 0.83.
d) We dont the the exact proportion with 100 % but we know that the proportion would lie in a certain range with certain degree of confidence
The area of a trapezoid can be found with this formula:
![A=\frac{1}2(b_1+b_2)h](https://tex.z-dn.net/?f=A%3D%5Cfrac%7B1%7D2%28b_1%2Bb_2%29h)
Where b1 and b2 are the bases and h is the height.
If we plug in what we know we can solve for the height.
We know that b1 = 52, b2 = 42, and A = 1833. Let's solve.
Answer:
B.
Step-by-step explanation:
all integers less than or equal to 18
Answer:
17.85 grams of vitamin C.
Step-by-step explanation:
0.6 x 7 = 4.2
0.35 x 5 = 1.75
4.2 + 1.75 = 5.95
5.95 x 3 = 17.85
Answer:
y = -5/3x + 4
Step-by-step explanation:
slope = -5/3
-1 = -5/3(3) + b
-1 = -5 + b
4 = b
y = -5/3x + 4