Answer:
Explanation:
P = 2(W + L)
L = 2x - 3
W = x + 4
P = 2[(x + 4) + (2x - 3)]
So thats the expression for the perimeter
Answer:
see below
Step-by-step explanation:
The experimental probability is what you actually rolled
24/60 = 2/5 = 40%
The theoretical probability is what we expect to happen
=number of even numbers / total number of numbers
3/6 = 1/2 = 50%
Answer: B
Step-by-step explanation:
Answer:
Option A is right
Step-by-step explanation:
Given that approximately 52% of all recent births were boys. In a simple random sample of 100 recent births, 49 were boys and 51 were girls. The most likely explanation for the difference between the observed results and the expected results in this case is
A) variability due to sampling
-- True because there is a slight difference whichmay be due to sampling fluctuations.
B) bias
False because given that 100 random births selected
C) nonsampling error
False. There is no chance for systematic error here.
d) Confounding: There is no confounding variable present inchild birth since each is independent of the other
e) a sampling frame that is incomplete
False because the sampling is done correctly.
For this case we have the following expression:
5n-2m / 7 + 3/4
We have the following variables:
variable 1: n
variable 2: m
The terms that accompany the variables are coefficients
Therefore, the term that does not accompany the variables is the constant of the expression.
The constant is: 3/4
Answer:
the constant is 3/4
