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Kobotan [32]
3 years ago
10

How do you write 81% as a fraction or whole number?

Mathematics
2 answers:
REY [17]3 years ago
4 0

Answer:

81/100

Step-by-step explanation:

81% as a fraction would be 81 over a hundred if you round.

GenaCL600 [577]3 years ago
4 0

Answer:

as a fraction 81/100

as a whole number 81

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Which is proportional to ¾?<br><br> 5/6<br> 6/8<br> 6/7<br> 8/9
STatiana [176]

Answer:

6:8

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A random sample of 225 individuals working in a large city indicated that 45 are dissatisfied with their working conditions. Bas
Lorico [155]

Answer:

CI 90 %  =  [  0,165  ;  0,235 ]

Lower limit     0,165

upper limit      0,235

Step-by-step explanation:

Sample information:

sample size    n  =  225

number of dissatisfied  individuals   x  =  45

p = 45/225

p = 0,2    and  q =  1 -  p   q  =  1  -  0,2   q  =  0,8

p*n = 0,2*225   =  45    and   q*n   =  0,8*225  =  180

p*n  and q*n  big enough to use the approximation of binomial distribution to normal distribution

90 % of Confidence Interval   then a significance level is  α  = 10%

α  =  0,1 in z table we get z(c) for that significance level

z(c) = 1,28

CI 90 %   =  [  p  ±  z(c)*√(p*q)/n ]

z(c) * √(p*q)/n    =  1,28 *  √ ( 0,2*0,8)/225

z(c) * √(p*q)/n    =  1,28 * 0,027

z(c) * √(p*q)/n    =  0,035

CI 90 %  =  [  0,2  ±  0,035 ]

CI 90 %  =  [  0,165  ;  0,235 ]

Lower limit     0,165

upper limit      0,235

3 0
3 years ago
Spam filters in an email program are similar to hypothesis tests in that there are two possible decisions and two possible reali
Eva8 [605]

Answer:

Option C) Type I error

Step-by-step explanation:

We are given the following in the question:

H_0:\text{Incoming email message is legitimate.}\\H_a: \text{Incoming email message is spam.}

Type I error:

  • It is also known as false positive.
  • It is the rejection of a true null hypothesis.

Type II error:

  • It is known as false positive.
  • It is the acceptance of a false alternate hypothesis.

An incoming legitimate message is flagged spam by a spam filter.

Thus, a true null hypothesis that the message is legitimate is rejected and the message is send to spam folder.

Thus, spam filter made a

Option C) Type I error

7 0
3 years ago
HelpPPPPP can y'all help solve this? 10b -8 &lt; -28 or 8 -6b &lt; -4
artcher [175]

Answer:

b < 2

Step-by-step explanation:

10b - 8 < 28

Add 8 to both sides

10b  -8 + 8< -28 + 8

Simplify

10b < 20

divide both sides by ten

10b divided by 10 < -20 divided by ten

b < 2

3 0
3 years ago
List the steps for the proper order of operations for each item.
posledela

Answer:

1. 0.5

2. 64

Step-by-step explanation:

1. (11 +33 - 42 ) ÷ ( 8 - 4 )

Order of operation is PEMDAS

Parenthesis , exponents, multiply or divide, addition or subtraction

First we start with parenthesis

1. (11 +33 - 42 ) ÷ ( 8 - 4 )

Simplify the parenthesis

so its 2÷ 4

answer is 0.5

2. (10 - 2 )^2 + ( 5 - 10 ÷ 2 )

First simplify the parenthesis

(8) ^2 + (5 - 10 ÷ 2)

Inside the parenthesis we have subtraction and division

As per order of operation we do the division firs and then subtract

(8) ^2 + (5 - 5)

(8) ^2 + 0

now we do the exponent 8^2 is 8* 8

64 + 0

64


7 0
3 years ago
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