Empirical rule dictates that, in a Bell-shaped distribution, 95% of data lies within 2 standard deviation on either side of the mean.
Therefore,
Lower value = mean-2SD = 70-2*8 = 70-16 = 54
Upper value = mean+2SD = 70+2*8 = 70+16 = 86
Then, 95% of the data lies between $54 and 84. These values can also be taken as the true mean of the population considering 95% confidence when sample mean has been calculated. In this regard, 2SD can be regarded as the margin error.
Step-by-step explanation:
I don't get the question a bit but I hope this makes sense
:)
Answer:
88 cm^2
Step-by-step explanation:
one rectangle = perimeter of 28 and times 4 equals 112 but you have to subtract 24 the perimeter of the square and get your answer
Answer:
8x^3y^2
Step-by-step explanation:
24/3 = 8
x^5/x^2 = x^3
y^6/y^4 = y^2
So
24x^5y^6/3x^2y^4 = 8x^3y^2
