Answer:
A=2(wl+hl+hw)=2·(8·12+4·12+4·8)=352
Step-by-step explanation:
brainliest?
Answer:
Step-by-step explanation:
Chicken fajita = 3.50
Juice = 1.50
1.5+3.5=5
10-5=5
5 is the change that will be received
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.
