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diamong [38]
3 years ago
10

Need help with what I did they all add up to 4 which is what the question asks for but it says that it not right

Mathematics
1 answer:
ludmilkaskok [199]3 years ago
6 0

Answer: Try putting the positive number and then the negative number after the and like the example.

Step-by-step explanation:

Your answers are right, it could be a glitch.

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Assume that when Human Resource managers are randomly selected, 62% say job applicants should follow up within two weeks. If 25
Alenkinab [10]

Using the binomial distribution, it is found that there is a 38% probability that exactly 18 of them say job applicants should follow up within two weeks.

<h3>How to find that a given condition can be modelled by binomial distribution?</h3>

Binomial distributions consists of n independent Bernoulli trials.

Bernoulli trials are those trials that end up randomly either on success (with probability p) or on failures( with probability 1- p = q (say))

The probability that out of n trials, there'd be x successes is given by

P(X =x) = \: ^nC_xp^x(1-p)^{n-x}

Binomial probability distribution  

P(X =x) = \: ^nC_xp^x(1-p)^{n-x}

The parameters are:

n is the number of trials.

x is the number of successes.

p is the probability of success on a single trial.

In this problem:

62% say job applicants should follow up within two weeks, p = 0.62

25 managers are selected, n = 25

The probability that exactly 18 of them say job applicants should follow up within two weeks is P ( X = 18)

P( X > 18) = 1 -  ( X = 18)

= 1 - 0.62

= 0.38

38 % probability that exactly 18 of them say job applicants should follow up within two weeks.

Learn more about binomial distribution here:

brainly.com/question/13609688

#SPJ1

8 0
2 years ago
Solve for x: 3x + 3 = -2x + 13
kobusy [5.1K]

Answer:

x=2

Step-by-step explanation:

To solve, we need to isolate the variable (x)

To do this, we must get all the variables to one side of the equation, and all the numbers to the other

3x+3= -2x+13

Add 2x to both sides to "reverse" the subtraction

5x+3=13

Subtract 3 from both sides to "reverse" the addition

5x=10

Divide both sides by 5 to "reverse" the multiplication

x=2

8 0
3 years ago
Which statement must be true?<br><br> a<br> b<br> c<br> d
lozanna [386]
ANSWER

\boxed {m \ne0}



EXPLANATION


The given function is

f(x) = mx + b


We need to find the inverse of this function,



Let

y= mx + b


We interchange x an y to obtain,


x = my + b


We solve for y now to obtain,


x - b = my


We divide through by m to get,

\frac{x - b}{m}  = y


Hence the inverse function is ,


{f}^{ - 1} (x) =  \frac{x - b}{m}


For this inverse to exist, the denominator must not be equal to zero,

Thus

m \ne0


The correct answer is A.
8 0
3 years ago
Read 2 more answers
Fred needs to write the equation of the line. He used (10, 64) and (12.5, 73) to find the slope, which is 3.6. The equation of t
UNO [17]

Answer:

y = 3.6x + 28

Step-by-step explanation:

y = Mx + c

64 = 3.6(10) + c

64 = 36 + c

64 - 36 = c

28 = c

3 0
2 years ago
A radio set was sold for 570 at a loss of 25 percent on the cost price find the cost price
Helga [31]

Answer:

712.50 is the cost price.

Step-by-step explanation:

570 increase 25% =

570 × (1 + 25%) = 570 × (1 + 0.25) = 712.5

7 0
2 years ago
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