Answer:
Step-by-step explanation:
Given that,
The frequency of x-rays,
We need to find the wavelength for x-rays. The relation between wavelength, frequency and speed of light is given by :
So, the wavelength for x-rays is .
Answer:
The first sampling method is Convenient Sampling. It is biased sampling and it is not representative of a random sample.
The second sampling method is Systematic Sampling. If this method of sampling is drawn from the population, it is an efficiently randomized sampling method.
Let us review the given answers.
1. Both samples should be exactly the same.
INCORRECT
2. Neither sample will be representative.
Because the second sampling method can be random, this answer is
INCORRECT.
3. The first sampling method, ..., is the most representative,
INCORRECT
4. The second sampling method, ..., is the most representative.
CORRECT
Step-by-step explanation:
Hope that helps
The first answer is [7, (infinity symbol) )
the second one is (1, (infinity symbol) )
Answer:
0.0001 = 0.01% probability of the Celtics winning eight straight championships.
Step-by-step explanation:
For each year, there are only two possible outcomes. Either the Celtics are the champions, or they are not. Each year is independent of other years. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
What would be the probability of the Celtics winning eight straight championships?
Each year, we have that
Eight straight championships: when n = 8. So
0.0001 = 0.01% probability of the Celtics winning eight straight championships.
7 in, because any value than 7 either makes more than 16 when doubled, or makes it so that the width has to be 0, which would make it a line and not a rectangle.