Answer:
Part A: yes
Part B: 50%
Step-by-step explanation:
There are two ways we can use a normal approximation for a sample: if the population it is from is normally distributed, or if the sample is sufficiently large (n > 30). In this case, we don't know if the population is normally distributed, but we do know the sample size is larger than 30, so we can use normal approximation.
The sample proportion is normally distributed, with a mean equal to the mean of the population. So there is a 50% chance that sample proportion is less than the population proportion.
Divide $18.75 by 12 and it should give you the unit rate
Answer:
(3, -5).
Step-by-step explanation:
By the definition of inverses:
In other words, the inverse of a function returns the input when given the output of the original function.
We know that the point (-5, 3) lies on the graph of f(x). In other words:
Then by definition:
So, the point (3, -5) must lie on the graph of f⁻¹(x).
Given,
Length of the wire, L=3/8 m
Its cut into 12pieces.
Thus length of one piece is:
The answer is:
Each piece is 0.031 m long.