Answer: 0.02
Step-by-step explanation:
Given: Sample size : 
The population proportion 
Then, 
The formula to calculate the standard error is given by :-
Hence, the standard deviation of the sample proportions (i.e., the standard error of the proportion) is <u>0.02</u>.
Answer:
y = x+7
Step-by-step explanation:
Assuming all of these numbers are ordered pairs (coordinates) when x is 1 y is 8, when x is 2 y is 9 and so on. If you notice y is going up by 1 every time so it follows that the starting point (y intercept) must be 7. Therefore, our equation will be y = x + 7.
Test it out:
Let x =2
y = 2 + 7 = 9 This matches our coordinate (2,9) so it's correct.
Let x =4
y = 4 + 7 = 11 This matches our coordinate (4,11) so it's correct.
Feel free to try out the rest of the coordinates, but usually 2 is enough to confirm that your equation is correct.
Answer: 140%
Step-by-step explanation:
First, you must find out how much you'll be making. To do this, multiply 356 by .4 (to get 142.4). If you're making 40% profit, you must add 142.4 to 356 (or else you'd be losing money!). We now know whoever sold these bike racks made 498.4 dollars. Divide this by 356 and get 1.4 which converts to a 140% markup up price (also meaning the price the racks were sold at is 1.4 times the price bought).
Hope this answers your question! Best of luck.
9514 1404 393
Answer:
- MN = 68°
- LM = 25°
- KLN = 180°
- JLN = 248°
- JN = 112°
- NJL = 267°
Step-by-step explanation:
The relevant relationships are ...
- the sum of arcs around a circle is 360°
- a diameter divides the circle into two 180° arcs
- the whole is the sum of the parts
- the measure of an arc is the measure of the corresponding central angle
__
The arc measures can be found to be ...
MN = 68°
LM = 180° -68° -87° = 25° . . . . semicircle KLN less the marked angles
KLN = 180° . . . . a semicircle
JLN = JM +MN = 180° +68° = 248° . . . . semicircle JLM + MN
JN = 180° -68° = 112° . . . . semicircle JNM less MN
NJL = 180° +87° = 267° . . . . semicircle NJK + KL
Answer:
y=-1/2x+2
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(-1-5)/(6-(-6))
m=-6/(6+6)
m=-6/12
m=-1/2
y-y1=m(x-x1)
y-5=-1/2(x-(-6))
y-5=-1/2(x+6)
y=-1/2x-6/2+5
y=-1/2x-3+5
y=-1/2x+2
