Answer:48 16 = ?
27 9 = 9
60 20 - 10
Step-by-step explanation:
Employee statement is the correct answer
For this case we have the following expression:
Applying distributive property to the terms within parentheses taking into account that:
We have:
We add similar terms taking into account that:
Equal signs are added and the same sign is placed.
Thus, an equivalent expression is:
Answer:
Answer:
Its a function
Step-by-step explanation:
x cant be the same
Let n = required random sample size.
Assume that the population standard deviation is known as σ.
Let m = sample mean.
At the 95% confidence level, the expected range is
(m - k(σ/√n), m + k(σ/√n))
where k = 1.96.
Therefore the error margin is 1.96(σ/√n).
Because the error margin is specified as 3% or 0.03, therefore
(1.96σ)/√n = 0.03
√n = (1.96σ)/0.03
n = 128.05σ²
This means that the sample size is about 128 times the population variance.
Answer:
Smallest sample size = 128.05σ², where σ = population standard deviation.
