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Delicious77 [7]
3 years ago
13

Fill in the blanks. According to estimates by the office of the Treasury Inspector General of IRS, approximately 0.07 of the tax

returns filed are fraudulent or will contain errors that are purposely made to cheat the IRS. In a random sample of 296 independent returns from this year, around __________ returns, give or take __________, will be fraudulent or will contain errors that are purposely made to cheat the IRS
Mathematics
1 answer:
maks197457 [2]3 years ago
5 0

Answer:

20.72; 4.39

Step-by-step explanation:

The expected number of fraudulent returns is given by the probability that a return is fraudulent multiplied by the number of returns in the sample:

E(F) = 0.07*296=20.72

The standard deviation of this binomial probability with p =0.07 and n = 296 is:

\sigma =\sqrt{np(1-p)}\\\sigma =\sqrt{296*0.07(1-0.07)}\\\sigma=4.39

Therefore, in a random sample of 296 independent returns from this year, around 20.72 returns, give or take 4.39, will be fraudulent or will contain errors that are purposely made to cheat the IRS.

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Question 3
Veseljchak [2.6K]

Answer:

A

Step-by-step explanation:

Big Brain

7 0
2 years ago
(2a+b)^2 how do you do this
gulaghasi [49]

•  Expand (2a + b)²:

(2a + b)²

= (2a + b) · (2a + b)


Multiply out the brackets by applying the distributive property of multiplication:

= (2a + b) · 2a + (2a + b) · b

= 2a · 2a + b · 2a + 2a · b + b · b

= 2²a² + 2ab + 2ab + b²


Now, group like terms together, and you get

= 2²a² + 4ab + b²

= 4a² + 4ab + b²    <———    expanded form  (this is the answer).


I hope this helps. =)


Tags:  <em>special product square of a sum algebra</em>

3 0
3 years ago
If <img src="https://tex.z-dn.net/?f=f%28x%29%3Dx%5E2-2" id="TexFormula1" title="f(x)=x^2-2" alt="f(x)=x^2-2" align="absmiddle"
jek_recluse [69]

Answer:

\boxed{f(6) = 34}

Step-by-step explanation:

Composition of functions occurs when we have two functions normally written similar or exactly like f(x) & g(x) - you can have any coefficients to the (x), but the most commonly seen are f(x) and g(x). They are written as either f(g(x)) or (f o g)(x). Because our composition is written as (f \circ g)(2), we are replacing the x values in the g(x) function with 2 and simplifying the expression.

g(2) = 3(2)

g(2) = 6

Now, because we are composing the functions, this value we have solved for now replaces the x-values in the f(x) function. So, f(x) becomes f(6), and we use the same manner as above to simplify.

f(6) = (6)^2-2

f(6) = 36-2

f(6) = 34

Therefore, when we compose the functions, our final answer is \bold{f(6) = 34}.

4 0
3 years ago
Read 2 more answers
Plz help thank you plz help plz
choli [55]

Answer:

A is the right answer

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Simplify <br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%5B6%5D%7B5%7D%20%20%5Ctimes%20%20%5Csqrt%5B2%5D%7B5%7D%20%20%3D%20" id
jek_recluse [69]

Step-by-step explanation:

\sqrt[6]{5}  \times  \sqrt[2]{5}

=  {5}^{  \frac{1}{6}  }  \times  {5}^{ \frac{1}{2} }

=  {5}^{ \frac{1}{6} +  \frac{1}{2}  }

=  {5}^{ \frac{1 + 3}{6} }

=  {5}^{ \frac{4}{6} }

=  {5}^{ \frac{2}{3} }

=  \sqrt[3]{ {5}^{2} } (ans)

5 0
3 years ago
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