Answer:
Step-by-step explanation:
Given that when you add two numbers together the result is 3.
The greater of the number is given as a.
Let "x" represent that lesser number.
Thus:
To make x the subject of the formula. Subtract a from both x.
Therefore, the expression that represents the lesser number, x, is:
Answer: A. Mean of sampling means
Standard deviation of sampling means =
B. The probability that your sample has mean less than 165 is 0.1492 .
Given : The distribution of blood cholesterol level in the
population of young men aged 20 to 34 years is close to normal with
mean Mg/dl and standard deviation
mg/dl.
Sample size : n= 150
Let sample mean values.
A. The mean and the standard deviation of the distribution of the sampling means would be :
Mean of sampling means =
Standard deviation of sampling means =
The probability that your sample has mean less than 165 would be
Hence , the probability that your sample has mean less than 165 is 0.1492 .
Answer:
(x) =
Step-by-step explanation:
Let y = f(x) and rearrange making x the subject, that is
y = 7x - 6 ( add 6 to both sides )
y + 6 = 7x ( divide both sides by 7 )
x =
Change y back into terms of x, hence
(x) =