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
shusha [124]
3 years ago
10

Is 20/30 equivalent to 2/3​

Mathematics
1 answer:
kicyunya [14]3 years ago
3 0

Answer:

Yes 20/30 is equivalent to 2/3

Step-by-step explanation:

Divide the fraction 20/30 by 10/10 to simply to 2/3

You might be interested in
Point x is located at (3,2). Point Y is located at (3,-8). What is the distance from point x to point y?
Tanya [424]
(3,-6) that’s the answer but my teacher showed me this, how far away is 3 from 3? Well it’s the same so no distance so it stays the same , how far away is 2 away from 8? It would be 6. Home this helps
6 0
3 years ago
A space S is defined as S = {1, 3, 5, 7, 9, 11} , and three subsets as A = {1, 3, 5} , B = {7, 9, 11} , C = {1, 3, 9, 11} . Assu
Lina20 [59]

Answer:

a) 0.5

b) 0.5

c) 0.67

d) 1

e) 0.83

f) 0.67

Step-by-step explanation:

a)

P(A)=n(A)/n(S)

n(A)=number of outcomes in event A=3

n(S)= Total number of outcome of an experiment=6

P(A)=3/6=1/2=0.5

b)

P(B)=n(B)/n(S)

n(B)=number of outcomes in event B=3

P(B)=3/6=1/2=0.5

c)

P(C)=n(C)/n(S)

n(C)=number of outcomes in event C=4

P(C)=4/6=2/3=0.67

d)

A∪B= {1,3,5} ∪ {7,9,11}={1,3,5,7,9,11}

P(A∪B)=n(A∪B)/n(S)=6/6=1

e)

A∪C={1,3,5}∪{1,3,9,11}={1,3,5,9,11}

P(A∪C)=n(A∪C)/n(S)=5/6=0.83

f)

A-C={1,3,5}-{1,3,9,11}={5}

(A-C)∪B={5}∪{7,9,11}={5,7,9,11}

P((A-C)∪B)=n((A-C)∪B)/n(S)=4/6=2/3=0.67

8 0
3 years ago
To increase the value of estimated Cohen's d, a researcher increases the sample size. Will this change the value of d?
tatyana61 [14]

Answer:

a. A) Yes; as sample size increases, effect size increases.

b. A) The critical value increases.

Step-by-step explanation:

a.

If all possible samples of size N are drawn from a finite population, Np, without replacement, and the standard deviation of the mean values of the sampling distribution of means is determined then:

σx =d  √N

d = σx . √N

d ∞ N

from this, we can say d is directly proportional to √N

where σx is the standard deviation of the sampling distribution of  means and d is the standard deviation of the population’. The standard deviation of a sampling distribution of mean values is called the standard error of the means,

therefore, we can conclude that:

A) Yes; as sample size increases, effect size increases.

b.

In this estimate, tc is called the confidence coefficient for small samples,  d is the standard deviation of the sample, x is the mean value of the sample and N is the number of members in the sample.

When determining the t-value, given by

t =( (x−µ) /s) * \sqrt{N-1}

it is necessary to know the sample parameters x and s and the population parameter µ. x and s can be calculated for the sample, but usually an estimate has to be made of the population mean µ, based on the sample mean value.

from the above equation it can be deduced that t value is determined with the sample size, and as the sample size increases

A) The critical value increases.

3 0
3 years ago
Which variable is most important to the following problem? After two hours, Kaylee measured the temperature of a mixture to be 6
Zarrin [17]
It was the temperature peak 89.4 without this there would be no difference.
5 0
2 years ago
Two brothers have a total age of 28 if one brother is older by 20 years how old is the second brother
romanna [79]

Answer:

8

Step-by-step explanation:

answer is up there sjsjs

4 0
2 years ago
Other questions:
  • Suppose your bank honors a check for which you don't have sufficient funds in your checking account. This action means that you'
    7·1 answer
  • Pls help asap...urgently help needed!!!<br>tia
    15·1 answer
  • Which two-dimensional shape cannot be used to create a pyramid?
    9·2 answers
  • Aggie is an Australian exchange student in China, and she currently has 14,000 yuan in her bank account. If the exchange rate ch
    14·1 answer
  • I need help with number20.
    10·2 answers
  • What percent of the people get less than eight hours of sleep each night? [Type your answer as a number.]
    7·2 answers
  • What is the value of (Negative one-half)–4?
    6·2 answers
  • Sean bought a laptop and a printer. He sold both items for £1,500 getting £1,350 just for the laptop. Sean made a 24% profit on
    8·1 answer
  • Shawna cuts out a square piece of card stock paper for a project. Her partner Tanisha wants to check to see if the cutout is act
    9·1 answer
  • (PLEASE HELP BRO THIS IS DUE TMR)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!