1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Rainbow [258]
3 years ago
14

What is the phase shift of a periodic function?

Mathematics
1 answer:
gogolik [260]3 years ago
7 0
The Phase Shift is how far the function is shifted horizontally from the usual position.
You might be interested in
PLEASE I NEED THIS ASAP MY TEST HAS A LIMIT TIME AND I ONLY HAVE 2 MINUTES LEFT PLEASEEEEE <33
strojnjashka [21]

Answer:

10/33 I hope this helps. Good luck!

7 0
2 years ago
Read 2 more answers
Question 3
avanturin [10]

Answer:

I think 1

I think 2

I think 3

I think 4

4 0
3 years ago
A particular concentration of a chemical found in polluted water has been found to be lethal to 20% of the fish that are exposed
torisob [31]

Answer:

a) P(X=14)=(20C14)(0.8)^{14} (1-0.8)^{20-14}=0.109

b) P(X\geq 10) = 1-P(X \leq 9) = 0.9994

c) P(X \leq 16)= 1-P(X>16) =1-P(X \geq 17)= 1- [P(X=17) +...+P(X=20)]=0.589

d) E(X)= np = 20 *0.8 = 16

Var(X) = np(1-p) = 20*0.8*(1-0.8) = 3.2

Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Let X the random variable of interest, on this case we now that:

X \sim Binom(n=20, p=1-0.2=0.8)

The probability mass function for the Binomial distribution is given as:

P(X)=(nCx)(p)^x (1-p)^{n-x}

Where (nCx) means combinatory and it's given by this formula:

nCx=\frac{n!}{(n-x)! x!}

Part a

For this case we want this probability:

P(X=14)

And using the mass function we have this:

P(X=14)=(20C14)(0.8)^{14} (1-0.8)^{20-14}=0.109

Part b

For this case we want this probability:

P(X \geq 10)

And we can find this using the complement rule:

P(X\geq 10) = 1-P(X

P(X=0)=(20C0)(0.8)^{0} (1-0.8)^{20-0}=1.05x10^{-14}

P(X=1)=(20C1)(0.8)^{1} (1-0.8)^{20-1}=8.39x10^{-13}

P(X=2)=(20C2)(0.8)^{2} (1-0.8)^{20-2}=3.19x10^{-11}

P(X=3)=(20C3)(0.8)^{3} (1-0.8)^{20-3}=7.65x10^{-10}

P(X=4)=(20C4)(0.8)^{4} (1-0.8)^{20-4}=1.30x10^{-8}

P(X=5)=(20C5)(0.8)^{5} (1-0.8)^{20-5}=1.66x10^{-7}

P(X=6)=(20C6)(0.8)^{6} (1-0.8)^{20-6}=1.66x10^{-6}

P(X=7)=(20C7)(0.8)^{7} (1-0.8)^{20-7}=1.33x10^{-5}

P(X=8)=(20C8)(0.8)^{8} (1-0.8)^{20-8}=8.65x10^{-5}

P(X=9)=(20C9)(0.8)^{9} (1-0.8)^{20-9}=0.00046

And if we replace we got:

P(X\geq 10) = 1-P(X \leq 9) = 0.9994

Part c

For this case we want this probability:

P(X \leq 16)

And we can use the complement rule like this:

P(X \leq 16)= 1-P(X>16) =1-P(X \geq 17)= 1- [P(X=17) +...+P(X=20)]

P(X=17)=(20C17)(0.8)^{17} (1-0.8)^{20-17}=0.205

P(X=18)=(20C18)(0.8)^{18} (1-0.8)^{20-18}=0.137

P(X=19)=(20C19)(0.8)^{19} (1-0.8)^{20-19}=0.0576

P(X=20)=(20C20)(0.8)^{20} (1-0.8)^{20-20}=0.0115

And if we replace we got:

P(X \leq 16)= 1-P(X>16) =1-P(X \geq 17)= 1- [P(X=17) +...+P(X=20)]=0.589

Part d

The expected value is given by:

E(X)= np = 20 *0.8 = 16

Var(X) = np(1-p) = 20*0.8*(1-0.8) = 3.2

3 0
3 years ago
2.
Nataliya [291]

Answer:

im not sure ask google lol sorry i couldnt help yall

7 0
3 years ago
Lia has 5 basketball courts that she is dividing each into 1\2 's for a tournament. How many sections will she have?
tatiyna
She will have 10 sections I think
4 0
2 years ago
Read 2 more answers
Other questions:
  • Four friends have dinner and bill comes to 85.78. They leave an 18 percent tip. What is the total amount of their bill.
    15·2 answers
  • I don’t understand. Can someone help me?
    8·2 answers
  • What is the mean to 24 72 46
    13·2 answers
  • Margo has a coin collection. She was given 1 coin as a gift, and she adds 3 coins per year. Which of the graphs below represents
    9·2 answers
  • HELP PLEASE ASAP
    9·2 answers
  • A baseball coach is creating a nine-player batting order by selecting from a team of 15 players. How many different batting orde
    11·1 answer
  • F(x)=x^2. what is g(x)?
    10·1 answer
  • Use the Quadratic Formula to Solve: <br> 8x^2+4x-16= -x^2
    6·1 answer
  • Please help me I need to pass this class
    14·1 answer
  • What is<br> A?<br> Write your answer as a fraction.<br> Submit
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!