Help pleasee and show workk!!!!!!!

It is reported that 50% of all computer chips produced are defective. Inspec- tion ensures that only 5% of the chips legally mar

12345 [234]

Answer:

probability of defective = 0.0545

Probability of a chip to be stolen = 0.0917

Step-by-step explanation:

given data

all computer chips produced are defective = 50%

legally marketed are defective = 5 %

stolen = 1%

solution

we get here probability of defective that is

probability of defective = P ( insepected and defective + stolen and defective) .........................1

put here value

probability of defective = (1 - 0.01) × 0.05 + 0.01*0.5

probability of defective = 0.0545

and

So, Probability of a chip to be stolen given defective =P (stolen and defective) ÷ P(defective) ......................2

put here value

Probability of a chip to be stolen = 0.01 × 0.5 ÷ 0.0545

Probability of a chip to be stolen = 0.0917

4 0

3 years ago

if you subtract 17 from my number and multiply the difference by -6 the results is -138 what is Sarah's number

likoan [24]

Answer:

40

Step-by-step explanation:

let the unknown be y (x is used as times(multiplication) )

(y-17)x-6=-138

add /-6 to both sides

y-17x-6/-6=-138/-6

y-17=23

make y independent/add 17 to both sides

y-17+17=23+17

y=40

or in an easier way

-138/-6 =23

23+17=40

simply reversing the question to get the answer

7 0

3 years ago

According to the US Bureau of Labor Statistics publication News, self-employed persons with home-based businesses work a mean of

worty [1.4K]

Answer:

The answer is below

Step-by-step explanation:

Given that mean (μ) = 23 hours, standard deviation (σ) = 10 hours

a) The population is a group of self employed home based workers while the variable is the number of hours worked per week.

b) The mean of the distribution of sample means (also known as the Expected value of M) is equal to the population mean μ.

$\mu_x=\mu=23\ hours$

The standard deviation of the distribution of sample means is called the Standard Error of M, it is given by:

$\sigma_x=\sigma/\sqrt{n} =\frac{10}{\sqrt{100} }=1$

c) $\mu_x=\mu=23\ hours$

$\sigma_x=\sigma/\sqrt{n} =\frac{10}{\sqrt{1000} }=0.32$

d) The sample size has no effect on the mean, hence increasing the sample size does not change the mean.

The square root of sample size is inversely proportional to the standard deviation therefore increasing the sample size reduces the standard deviation.

5 0

3 years ago

Y less than the product of 3 and z

faust18 [17]

Answer:

Y<3Z

Step-by-step explanation:

Y<3*Z

Y<3Z

5 0

3 years ago

What are the coordinates of the center of the ellipse shown below?

photoshop1234 [79]

Answer:

Option D (7, -3)

Step-by-step explanation:

We know that the general equation of an ellipse has the form:

$\frac{(x-h)^2}{a^2} + \frac{(y-k)^2}{b^2} = 1$

Where the point (h, k) are the coordinates of the center of the ellipse

In this case the equation of the ellipse is:

$\frac{(x-7)^2}{4} + \frac{(y+3)^2}{16} = 1$

Then

$h=7\\\\k = -3$

So The coordinates of the center of the ellipse are (7, -3)

8 0

3 years ago

Read 2 more answers