A factory makes lightbulbs. The probability that a bulb is defective is If
300 lightbulbs are tested, about how many are expected to be defective?​

Answer: I think it c or d but more c

Step-by-step explanation:

Answer:

2.99

Step-by-step explanation:

Answer: 88.5

Step-by-step explanation:

Step 1: Address the formula, input parameters & values.

Input parameters & values:

The given numbers are 82 & 95

Step 2: Find the sum of the given two numbers.

sum = 82 + 95 = 177

Step 3: Divide the sum by 2 to get the average.

average = 177/2

= 88.5

Answer:

A.)

0.852 ; 0.999 ; 0.013

B.)

0.018 ; 0.593 ; 0.050

Step-by-step explanation:

Given :

Proportion of marketing personnel that are extrovert, p = 0.75

1 - p = 1 - 0.75 = 0.25

Proportion of computer programmers that are introverts, p = 0.55

1 - p = 1 - 0.55 = 0.45

According to binomial distribution formula :

P(x =x) = nCx * p^x * (1 - p)^(n - r)

A.) n = 15

Probability that 10 or more are extrovert

P(x ≥ 10) = p(x = 10) + p(x = 11) +... p(x = 15)

To save computation time, we can use a binomial probability calculator ;

P(x ≥ 10) = 0.8516 = 0.852

Probability that 5 or more are extrovert :

P(x ≥ 5) = p(x = 5) + p(x = 6) +... p(x = 15)

To save computation time, we can use a binomial probability calculator ;

P(x ≥ 5) = 0.9999 = 0.999

Probability that all are extrovert :

P(x = 15) = 15C15 * 0.75^15 * 0.25^0

P(x = 15) = 1 * 0.75^15 * 0.25^0

P(x = 15) = 0.01336 = 0.013

B.

What is the probability that all are introverts?

n = 5

None are introvert :

P(x = 0) = 5C0 * 0.55^0 * 0.45^5

P(x = 0) = 1 * 1 * 0.0184528125

P(x = 0) = 0.01845 = 0.018

P(x ≥ 3) = p(3) + p(4) + p(5)

To save computation time, we can use a binomial probability calculator ;

P(x ≥ 3) = 0.5931 = 0.593

Probability that all are introvert

P(x = 5) = 5C5 * 0.55^5 * 0.45^0

P(x = 5) = 1 * 0.55^5 * 0.45^0

P(x = 5) = 0.0503 = 0.050

[tex] \Large \text {Answer:} [/tex]

[tex] \large \boxed {\dfrac{23}{40}} [/tex]

[tex] \Large \text {Step-by-step explanation:} [/tex]

[tex] \text{P}_{B}(r) = \text{P}_{A}(r) \cdot \text{P}_{B}(r) + \text{P}_{A}(w) \cdot \text{P}_{B}(r) [/tex]

[tex] \text{P}_{B}(r) = \left (\dfrac{3}{5} \right ) \negthickspace \left(\dfrac{5}{8}\right ) + \left (\dfrac{2}{5} \right ) \negthickspace \left (\dfrac{4}{8} \right ) [/tex]

[tex] \text{P}_{B}(r) = \dfrac{23}{40} [/tex]

The probability of drawing a red chip from bowl B will be ( 23 / 40 ).

Probability is defined as the ratio of the number of favourable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.

Probability = Number of favourable outcomes / Number of sample

Bowl A contains three red and two white chips, and bowl B contains four red and three white chips. A chip is drawn at random from bowl A and transferred to bowl B.

The probability will be calculated as:-

[tex]\rm P_B(r)=P_A(r)P_B(r)+P_A(w)P_B(r)\\\\P_B(r) = (\dfrac{3}{5})(\dfrac{5}{8})+(\dfrac{2}{5}(\dfrac{4}{8})\\\\P_B(r)=\dfrac{23}{40}[/tex]

Therefore, the probability of drawing a red chip from bowl B will be ( 23 / 40 ).

To know more about probability follow

https://brainly.com/question/24099712

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Answer:

56-17-43+15

11. ........

Answer: 11

Step-by-step explanation:

We need to start by evaluating the problem, we can simplify this equation so its easier to solve.

So the new equation will be [tex]56-17-43+15[/tex].

56 - 17 = 39

39 - 43 = -4

-4 + 15 = 11.

So [tex]56-17-43+15 = 11[/tex].

11 is the answer.

Answer:

11 dimes and 9 quarters

Step-by-step explanation:

lets make x quarters and y dimes

Here is the equation we have so far:

x+y=20

BUT it can also be used to determine the values:

0.25x+0.10y=3.35

----------------------------------------------------------------------------

0.25x+0.10y=3.35

x+y=20

Im going to solve for quarters first.

Multiply everything by 0.25 on the bottom equation: 0.25x+0.25y=5

Now you have two equations:

0.25x+0.10y=3.35

and 0.25x+0.25y=5

subtract out the 0.25x

.15y=1.65

y=11

------------------------------------------------------------------------------

you have 11 dimes.

x+11=20

x=9

You have 9 quarters

Answer:

She is not breaking even. The discounted price is .84t, which is less than t.

Step-by-step explanation:

Retail price= 1.4

1.4×.4= .56

40% of 1.4 is .56

Subtract 40% of 1.4 from the retail price because she is marking down.

(1.4)-(.56)=.84

So the discounted price is .84t

This problem is difficult because we don't know if she sold any tea by the retail price and if she did how much did she sell.

Answer:

the answer is 7.83 it's not rounded though

Answer:

-7 1/3 - (-2/5)

Step-by-step explanation:

-22/3 + 2/5

(-110+6)/15

-104/15

-6. 933

ans is -6. 933

Answer: -104/5

Step-by-step explanation:

-22/3 + 2/5 = -104/15

Answer:

$170

Step-by-step explanation:

$20 / 2 people = $10 / person

17 people ($10 / person) = $170

x3 - 1/2x + 2 = 0

if you mean x³, and not x3, then heres the answer to the problem: (if it is something else please let me know)

x³ - 1/2x + 2 = 0

              -2     -2

x³ - 1/2x = -2

^no side is 0 :D

A number raised to an exponent is the number multiplied by itself the number of times the exponent is.

The exponent is 3, so this means 0.25 is multiplied by itself 3 times.

0.25^3 = 0.25 x 0.25 x 0.25

Answer:0.100

Step-by-step explanation:

If you sed the rule of counting decimal places in the equation to find the number of decimal places in the answer you must not discard zeros too early. For example to multiply 0.25 by 0.4 you need 2+1 decimal places and the multiplication without a decimal point gives 0100. The answer is therefore 0.100.

Answer:

Step-by-step explanation:

I love you

Answer:

Step-by-step explanation:

first

secnf

Answer:

The answer is 1,122

Step-by-step explanation:

33 x 34

Answer:

y= 3x-1

Step-by-step explanation:

Answer:

I think it is commutative

Step-by-step explanation:

because commute means move so I think that's what it is

Answer:

commutative property of multiplication i did the test

Step-by-step explanation:

Answer:

The answer is C.

Step-by-step explanation:

There are more minutes than the amount of water, so this is the only reasonable answer.

Answer:

that would be a seventy (70)

Answer:

70%

Step-by-step explanation:

Answer:

5 1/4 and 5 1/3 (you need to find a common denominator, which is 12)

5 3/12 and 5 4/12 (whatever you multiply the denominator by to get it to 12, you multiply the numerator by as well)

Ryan is 1/12 of a foot shorter than John

your answer is C

Step-by-step explanation:

I hope this helped :)

Step-by-step explanation:

[tex]\huge\bold\purple{ option\:C \: is\:right\:answer }[/tex]

Answer:

[tex]x = 9\\LN=MP=79\\[/tex]

Step-by-step explanation:

In a rectangle, the diagonals are equal:

[tex]LN = MP\\4x+43=9x-2 => 5x = 45 => x = 9\\LN = 79\\MP=79\\[/tex]

Answer:

9x^2 25x+14

Step-by-step explanation:

using FOIL:

(x+2)(9x+7)

9x^2 +7x + 18x +14

9x^2 25x+14

Answer:

False

Step-by-step explanation:

The male's want sports cars more and the female's want SUV's more.

Here you go!

Hope this helps! :D

Answer:

a)x=-2.5 or x=1

Step-by-step explanation:

it's the answer

hope It helps

Answer:

4/3

Step-by-step explanation:

the answer is the second option

4/3