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
melomori [17]
3 years ago
9

Is -45.2 an integer​

Mathematics
1 answer:
OleMash [197]3 years ago
8 0

Answer:

yes it is sis

Step-by-step explanation:

hope this helps

have a good one yall

im brooke btw

You might be interested in
FIND THE DIFFerence.<br> 78,000 - 9,743 =
vitfil [10]

Answer:

68257

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Write a real-world problem that can be represented by the equation x + 18 = 24.
adoni [48]
You go to the store and buy x amount of pies and 18 cakes. You bought 24 pastries in all. How many pies did you buy
8 0
2 years ago
Write in standard form the equation of the line that has a slope of 2 and that passes through ( 3, -1) explain please!
Evgesh-ka [11]
Standard form.

y=mx+n

Where m is the slope and n is the point where x=0. Then, you have,
y=2x+n


To obtain n use the point they give you,

-1=2(3)+n

So n=-7 and then

y=2x-7
7 0
2 years ago
A recent survey by the New Statesman on British social attitudes asked respondents if they believe that inequality is too large.
Reika [66]

Answer:

(a) The probability that in a a sample of six British citizens two believe inequality is too large is 0.0375.

(b) The probability that in a a sample of six British citizens at least two believe inequality is too large is 0.9944.

(c) The probability that in a a sample of four British citizens none believe inequality is too large is 0.0046.

Step-by-step explanation:

The random variable <em>X</em> can be defined as the number of British citizens who believe that inequality is too large.

The proportion of respondents who believe that inequality is too large is, <em>p</em> = 0.74.

Thus, the random variable <em>X</em> follows a Binomial distribution with parameters <em>n</em> and <em>p</em> = 0.74.

The probability mass function of <em>X </em>is:

P(X=x)={n\choose x}\ 0.74^{x}(1-0.74)^{n-x};\ x=0,1,2,3...n

(a)

Compute the probability that in a a sample of six British citizens two believe inequality is too large as follows:

 P(X=2)={6\choose 2}\ 0.74^{2}(1-0.74)^{6-2}\\=15\times 0.5476\times 0.00456976\\=0.03753600864\\\approx 0.0375

Thus, the probability that in a a sample of six British citizens two believe inequality is too large is 0.0375.

(b)

Compute the probability that in a a sample of six British citizens at least two believe inequality is too large as follows:

P (X ≥ 2) = 1 - P (X < 2)

              = 1 - P (X = 0) - P (X = 1)

             =1-[{6\choose 0}\ 0.74^{0}(1-0.74)^{6-0}]-[{6\choose 1}\ 0.74^{1}(1-0.74)^{6-1}]\\\\=1-[1\times 1\times 0.000308915776]-[6\times 0.74\times 0.0011881376]\\\\=1-0.00031-0.0053\\\\=0.99439\\\\\approx 0.9944

Thus, the probability that in a a sample of six British citizens at least two believe inequality is too large is 0.9944.

(c)

Compute the probability that in a a sample of four British citizens none believe inequality is too large as follows:

 P(X=0)={4\choose 0}\ 0.74^{0}(1-0.74)^{4-0}\\=1\times 1\times 0.00456976\\=0.00456976\\\approx 0.0046

Thus, the probability that in a a sample of four British citizens none believe inequality is too large is 0.0046.

8 0
3 years ago
What scale of measurement is being used when a teacher measures the number of correct answers out of 50 on a quiz for each stude
seropon [69]
AssessmentA broad term used to describe a systematic process used to collect information.TestA systematic procedure for measuring a sample of behavior from a domain.MeasurementThe process of assigning numbers to some characteristic according to some specified rules.Item Difficulty for a test item scored incorrect (0) or correct (1) from a classical test theory perspectiveProportion of individuals out of the total number of individuals who answered the item correctly (40 students out of 100 answered the item correctly = .40; the bigger the number the "easier" the item).Item Discrimination for a test item scored incorrect (0) or correct (1) from a classical test theory perspectiveDegree to which an item differentiates people who score high on the total test from those who score low on the total test. Item-total correlation is one way of defining item discrimination. You want items to have positive values for item discrimination.Item Variance for a test item scored incorrect (0) or correct (1) from a classical test theory perspective<span>Item variance = (proportion of individuals who answered the item correctly) x (proportion of individuals who answered the item incorrectly)
p x q</span>Covariance between 2 variablesCovariance is a measure of the linear association between 2 variables with the 2 variables represented in their original units (not standardized). Unlike a correlation coefficient that goes from -1 to +1, the value of a covariance can go from - infinity to + infinity.Pearson product moment correlation (r) between 2 variablesPearson correlation (r) is a measure of the linear association between 2 variables with the 2 variables being standardized (mean = 0, SD = 1). Correlation coefficient that goes from -1 to +1Variance-Covariance MatrixIn a variance-covariance matrix the variances of the variables are represented in the diagonal of the matrix; the covariances between pairs of variables are represented in the off diagonalConstructAn unobserved or latent variable that is used to explain some observed phenomenon or experience. Latent variables are represented by a circle in measurement models.Reflective Measurement ModelA measurement model that holds that holds that a construct is viewed as the cause of the observed or measured variables.Formative Measurement ModelA measurement model that holds that holds that the observed or measured variables are the cause of the latent variableOperational Definition of a ConstructA definition that is clear and detailed that defines the construct by specifying the procedures used to measure a constructContent ValidityOne of five sources of measurement validity evidence that often involves experts who are knowledgeable about the construct making evaluative judgments about whether the items used to measure the construct adequately reflect the definition of the construct.Convergent ValidityA construct measured by 2 methods should produce a moderate to strong correlation between the 2 measures (e.g., a person's anxiety determined by a questionnaire and a person's anxiety determined by a structured interview).Discriminant ValidityScores on the measure are not related to other measures that are theoretically different (if Grit is theoretically different from Conscientiousness, the correlation between these measures should not be strong)Nomological NetworkAn approach used as part of the process of gathering evidence of construct validity of educational and psychological measures. Similar to the research process, relationships based on theory between measures that the new measure should relate to and measures it should not relate to are tested.<span>Reliability</span>
8 0
3 years ago
Other questions:
  • What is the LCMs of 27,48 and 66
    10·1 answer
  • What is the sum of -7/10 + 1/4
    6·1 answer
  • The national average utility cost is $270.48 per month. If the average phone bill is 12.6% of the total amount and the average u
    14·1 answer
  • What is 2 divided by 38
    9·2 answers
  • Danielle runs an afterschool program for children. The local baseball team donated 220 game tickets to the program. If Danielle
    14·2 answers
  • Hello! I need help with this problem.
    8·2 answers
  • I cant figure it out 50 ÷ 3.79
    5·2 answers
  • The ratio 400g:1kg can be written in the form 1:n<br> Find the value of n
    5·1 answer
  • 1
    8·1 answer
  • At a coffee shop, the first 100 customers'
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!