Answer:
The answer is explained below
Step-by-step explanation:
A. How many ways can you distribute 4 different balls among 4 different boxes
The number of ways in which 4 different balls can be distributed among 4 different boxes is 
B. How many ways can you distribute 4 identical balls among 4 identical boxes?
The number of ways in which 4 identical balls can be distributed among 4 identical boxes = P(4,1) + P(4,2) +P(4,3) + P(4,4) = 1 + 2 + 1 + 1 = 5 ways
Where P(k,n) is the number of partitions that k can be divided into n parts
P(4,1) = 4 = 1
P(4,2) = 1 + 3, 2+2 = 2
P(4,3) = 1 + 1 + 2 = 1
P(4,4) = 1 + 1 + 1 + 1 = 1
C. How many ways can you distribute 4 identical balls among 4 different boxes
The number of ways in which 4 identical balls can be distributed among 4 different boxes = 
Answer:
If there are 6 tiles, the probability is 1/6
Step-by-step explanation:
Using the binomial distribution, it is found that:
The probability that the student will get 15 correct questions in this test by guessing is 0.0207 = 2.07%.
For each question, there are only two possible outcomes, either the guess is correct, or it is not. The guess on a question is independent of any other question, hence, the binomial distribution is used to solve this question.
Binomial probability distribution
The parameters are:
- x is the number of successes.
- n is the number of trials.
- p is the probability of a success on a single trial.
In this problem:
- There are 20 questions, hence
.
- Each question has 2 options, one of which is correct, hence

The probability is:

In which:







Then:

The probability that the student will get 15 correct questions in this test by guessing is 0.0207 = 2.07%.
You can learn more about the binomial distribution at brainly.com/question/24863377
Answer:
30+0.10x+0.05t
talk more than text
Step-by-step explanation:
Answer:
There is a 91.6% increase from 12 to 23 ft