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4 years ago

Mr. Bender is putting his middle school band students into O points

Mathematics

1 answer:

baherus [9]4 years ago

6 0

Answer:

Step-by-step explanation:

the answer is 8 because is the oly no that if divided by any number that the answer will be given and it is the largest number that can go in 32 and 40

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The expected number of typographical errors on a page of a certain magazine is .2. What is the probability that an article of 10

Pavel [41]

Answer:

a) The probability that an article of 10 pages contains 0 typographical errors is 0.8187.

b) The probability that an article of 10 pages contains 2 or more typographical errors is 0.0175.

Step-by-step explanation:

Given : The expected number of typographical errors on a page of a certain magazine is 0.2.

To find : What is the probability that an article of 10 pages contains

(a) 0 and (b) 2 or more typographical errors?

Solution :

Applying Poisson distribution,

$N\sim Pois(0.2)$

$P(N=r)=\frac{e^{-np}(np)^r}{r!}$

where, n is the number of words in a page

and p is the probability of every word with typographical errors.

Here, n=10 and E(N)=np=0.2

a) The probability that an article of 10 pages contains 0 typographical errors.

Substitute r=0 in formula,

$P(N=0)=\frac{e^{-0.2}(0.2)^0}{0!}$

$P(N=0)=\frac{e^{-0.2}}{1}$

$P(N=0)=e^{-0.2}$

$P(N=0)=0.8187$

The probability that an article of 10 pages contains 0 typographical errors is 0.8187.

b) The probability that an article of 10 pages contains 2 or more typographical errors.

Substitute $r\geq 2$ in formula,

$P(N\geq 2)=1-P(N$

$P(N\geq 2)=1-[P(N=0)+P(N=1)]$

$P(N\geq 2)=1-[\frac{e^{-0.2}(0.2)^0}{0!}+\frac{e^{-0.2}(0.2)^1}{1!}]$

$P(N\geq 2)=1-[e^{-0.2}+e^{-0.2}(0.2)]$

$P(N\geq 2)=1-[0.8187+0.1637]$

$P(N\geq 2)=1-0.9825$

$P(N\geq 2)=0.0175$

The probability that an article of 10 pages contains 2 or more typographical errors is 0.0175.

6 0

3 years ago

Can you please solve pi

Degger [83]

Answer:

pi is 3.14

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Solve p(x)= 2x^4-3x^3-6x^2+5x+6

bekas [8.4K]

Answer:

Three solutions were found :

x = 3/2 = 1.500

x = 2

x = -1

Step-by-step explanation:

6 0

3 years ago

Numbers that are real or imaginary

ICE Princess25 [194]

An imaginary number is a complex numberthat can be written as a real numbermultiplied by the imaginary unit i

Hope this helped!

7 0

3 years ago

3x^2-5x-7 find the sum and product

Bad White [126]

Answer:

$s = \frac{5}{3}$

$p = \frac{7}{3}$

Step-by-step explanation:

for this equation

a=3

b= -5

c = -7

The sum of equal to

$- \frac{b}{a}$

and the product is equal to

$\frac{c}{a}$

. All you do is replace the values. You can prove both of those using the quadratic formula.

3 0

3 years ago