Answer:
Normal distribution with mean 0.6 and standard deviation 0.035
Step-by-step explanation:
It's a problem related to Population Proportion
In this, p′ = x / n where x represents the number of successes and n represents the sample size. The variable p′ is the sample proportion and serves as the point estimate for the true population proportion. q′ = 1 – p′
<em>The variable p′ has a binomial distribution that can be approximated by the normal distribution</em>
here, X is the number of “successes” where the woman makes the majority of the purchasing decisions for the household. P′ is the percentage of households sampled where the woman makes the majority of the purchasing decisions for the household.
x = 120
n = 200
p’ = 120/200 = 0.6
The sample proportion will follow the normal distribution. The mean of the distribution being p’ = 0.6
The standard deviation for the distribution is calculated as
Standard Deviation = √[(p’) x (1 – p’)/n]
Standard Deviation = √[(0.6) x (0.4)/200] = √0.0012
Standard Deviation = 0.035
Yees ittt does. A is the right answer
The first two are true and the last one is false
Answer:
The dimensions of the garden are
Length and Width
Step-by-step explanation:
Let
x----> the length of the rectangular garden
y ---> the width of the rectangular garden
Aw ----> the area of the walkway
we know that
----> equation A
so
----> equation B
Substitute equation A in equation B
Find the value of x
therefore
The dimensions of the garden are
Length
Width
Answer:
5
x
=
4
+
1
=
5
Step-by-step explanation:
Use the given functions to set up and simplify
4
+1