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denis-greek [22]
2 years ago
5

Suppose flaws (cracks, chips, specks, etc.) occur on the surface of glass with density of 3 per square meter. What is the probab

ility of there being exactly 4 flaws on a sheet of glass of area 0.5 square meter
Mathematics
1 answer:
DiKsa [7]2 years ago
8 0

Answer:

0.047

Step-by-step explanation:

Given that poisson distribution with mean m, for 0.5 square meter =1.5

Then the formula for finding the probability =

P[k] = (e^-m * m^k) k!

Hence we have

P[4] =[ (e^-1.5) * (1.5^4)] ÷ 4 * 3 * 2 * 1

= (0.2231301601 * 5.0625) ÷ 24

=( 1.12944375) ÷24

= 0.04706

≈ 0.047

Hence, the final answer is 0.047

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Let n be an integer in the conditional statement below.
statuscvo [17]

Answer:

The hypothesis is:   "The last digit of n is zero."

The conclusion is:   "n is divisible by five."

The converse is:   "If n is divisible by five, the the last digit of n is zero."

The contrapositive is:   "If n is not divisble by five, then n does not end in zero."

Step-by-step explanation:

I just took the test :)

5 0
2 years ago
Lindsay and menonhave 1,240 stickers.menon has 4 times as many stickers as Lindsay.menon decides to have 6 stickers on each page
Lemur [1.5K]

a) Menon has 992 stickers. We can find this by writing an algebraic expression for the number of stickers, with x being the number that Lindsay has. This gives us:

x + 4x = 1240

5x = 1240

x = 248

Now we multiply 248 by 4 to get 992.

b) There are 2 stickers left over. First we have to divide 992 by 6, which gives us 165 as a whole number, but then a remainder of 2. That means that there are two stickers left.

c) Menon needs 4 more stickers, as 6 - 2 = 4, and there are 6 stickers per page.

I hope this helps! Let me know if you have any questions :)


5 0
2 years ago
Juan is spinning a wheel with 4 unequal spaces marked with values of $200, $300, $400, and $600. The probability of landing on $
Blababa [14]

Answer:

333 and 1000

Step-by-step explanation:

a]

The expected value of spinning the wheel is given by:

E(x)=2/9(200)+4/9(300)+2/9(400)+1/9(600)

E(x)=44 4/9+133 1/3+88 8/9+66 2/3

E(x)=333 1/3

b] The expected value of spinning the wheel thrice will be:

(expected value of spinning once)*(number of spins)

=333 1/3*3

=1000/3*3

=1000

6 0
2 years ago
The physician orders 1500 flu injections. There were 300 shots given in September, 450 shots given in October, and 665 shots giv
GalinKa [24]

Answer:

94.33

Step-by-step explanation:

add up all numbers then input into a percentage calculator

7 0
2 years ago
Read 2 more answers
Enter the values for the highlighted variables that show how to subtract the rational expressions correctly
Lina20 [59]
A = 6
x^2 + 6x is equal to x(x+6)
b=2
Denominator and numerator of the first term are multiplied by x. 
c=6
Second term is multiplied by (x-6)/(x-6)
d=2
Now that they have the same denominator, the two terms are combined. 2 is the coefficient of the first term
e=6
In the same way as d is carried over from b, e is carried over from c. 
f = 6
2x - x + 6 = x + 6
g = 1 
We factor out the (x+6) from the numerator and denominator
4 0
2 years ago
Read 2 more answers
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