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faltersainse [42]

3 years ago

11

A division of a company has over 200200200 employees, 48\%48%48, percent of which are male. The company is going to randomly sel

ect 101010 of these employees to attend a conference. Let Z=Z=Z, equals the number of male employees chosen.
Is ZZZ a binomial variable? Why or why not?
Choose 1 answer:
Choose 1 answer:

(Choice A)
A
Each trial isn't being classified as a success or failure, so ZZZ is not a binomial variable.

(Choice B)
B
There is no fixed number of trials, so ZZZ is not a binomial variable.

(Choice C)
C
The trials are not independent, so ZZZ is not a binomial variable.

(Choice D)
D
This situation satisfies each of the conditions for a binomial variable, so ZZZ has a binomial distribution.

1 answer:

k0ka [10]3 years ago

7 0

Answer:

If its ok im taking some points to help people

Step-by-step explanation:

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Ivan has 6 times as many blue beads as red beads. he has 49 red and blue beads in all. how many blue beads does Ivan have

salantis [7]

Let

x--------> the number of blue beads

y--------> the number of red beads

we know that

$x+y=49$

$x=49-y$ -------> equation $1$

$x=6y$ ------> equation $2$

equate equation $1$ and equation $2$

$49-y=6y\\ 6y+y=49\\ 7y=49\\\\ y=\frac{49}{7} \\ \\ y=7$

find the value of x

$x=6*7\\ x=42$

therefore

the answer is

Ivan has $42$ $blue beads$

3 0

3 years ago

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10(4-7) What is the value of =(4-1) ? <br>-10 <br>- 6<br> 6<br> 10

blagie [28]

Answer 10

This is the formula of an arithmetic sequence.
a
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(
3
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(
n
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1
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a
n
=
1
+
(
3
)
(
n
-
1
)
Simplify each term.
a
n
=
1
+
3
n
−
3
a
n
=
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+
3
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4 0

3 years ago

Standard deviation of 300, 785, 670, 187, 760, 724

White raven [17]

STEP 1

Mean = $\frac{300+785+670+187+760+724}{6} = \frac{3426}{6}=571$

STEP 2

Subtract the mean from each data value then square the answer
$300-571=-271$ ⇒ $(-271)^{2} =73441$
$785-571=214$ ⇒ $(214)^{2}=45796$
$670-571=99$ ⇒ $(99)^{2}=9801$
$187-571=-384$ ⇒ $(-384)^{2} =147456$
$760-571=189$ ⇒ $189^{2}=35721$
$724-571=153$ ⇒ $153^{2} =23409$

STEP 3

Add the squared answers in STEP 2 then find the mean

$\frac{73441+45796+9801+147456+35721+23409}{6}= \frac{335624}{6}=55937.3$

STEP 4

Square root the answer in STEP 3
$\sqrt{55937.3} =236.5$

Standard deviation is 236.5

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3 years ago

What is the domain of y = √x^2-1?

andriy [413]

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The correct option is a

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4 years ago

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Tasya [4]

Answer:

x = 8/3 or 2 2/3

Step-by-step explanation:

x - 5/3 = 1

x - 5/3 + 5/3 = x

1 + 5/3 = 8/3 or 2 2/3

x = 8/3 or 2 2/3

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3 years ago

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