Answer:
The second number in an ordered pie of numbers that corresponds to a point on a coordinate system is the y<u>-value.</u>
Answer:
a. 29.05 b. 29.05 c. 29.5
Answer:
It would not be reasonable to say that more than half of the people with this disease would improve if they used the new drug
Step-by-step explanation:
Data provided in the question:
Sample size, n = 1000
Number of people improved when they used the drug = 510
Thus,
Probability that Number of people improved when they used the drug
= 510 ÷ 1000
= 0.510
Now,
margin of error, E = 
= 
= 0.032 = 3.2%
Therefore,
Portion of 0.510 is likely to lie in the 3.2% of the actual value of population
And,
The lower portion can be as small as p - E
= 0.510 - 0.032
= 0.478 i.e 47.8% of the sample
Hence,
It would not be reasonable to say that more than half of the people with this disease would improve if they used the new drug
Answer:
x:y = 1:1 or 2:3
Step-by-step explanation:
By a difference of squares, we get:
(y+x)(y-x)=5(y-x)^2
move all to one side:
(y+x)(y-x) - 5(y-x)^2 = 0
take a common factor of (y - x) out and expand and simply the other factor:
(y - x)[y+x-5(y-x)] = 0
(y - x)(-4y + 6x) = 0
By the null factor rule:
x = y
=> x:y = 1:1
or
6x = 4y
=>
x:y = 4:6
x:y = 2:3