83,277 round it up to the nearest thousand

Mrs. Wheeler prepares a list of 434343 US presidents, 313131 of whom served in the military. Then 888 students each select a pre

grigory [225]

Answer:

Probability of atleast one of the students(888) selecting a president with no service in the military reaches 1.

Step-by-step explanation:

Total Presidents in list = 434343

Military men to be president = 313131

Probability of selecting President who were also military men =

p = 313131/434343 = 0.72

Probability of selecting President who were not military men =

q = 1 - p = 1 - 0.72 = 0.28

Now; no of students who make a choice = 888

no. of Choices made resulting in success = x : {0, 1, 2, 3,............., 888 }

GIVEN CASE:

P(f) = Probability of atleast one student selecting a president with no service in military

This case fails when no one selects a president with no service in military, let us call it P(f').

P(f) = 1-P(f')

Calculating P(f'):

Let us define:

Failure = selecting a president with service in military , p = 0.72

Success = selecting a president with no service in military , q = 0.28

Using Binomial Theorem:

we have this case when n students make selections and x of them are successful.

$P(x) = nCx * q^{x} * p^{n-x}$

In case of f' , n = 888 and x = 0

$P(0) = 888 C 0 * (0.28)^{0} * 0.72^{888-0}$

$= (888!/(888-0)!) * (1) * (0.72)^{888}\\= (0.72)^{888}\\= 2.047655e-127\\$

Hence, P(f') = 2.047655e-127 (reaches 0)

Now: P(f) = 1 - P(f')

P(f) = 1 - 2.047655e-127 = 1

Hence Probability of atleast one of the students(888) selecting a president with no service in the military is 1.

7 0

3 years ago

Subtract (6k + 2) - (3k - 2)

Rudiy27

The answer is (3k + 4)

3 0

3 years ago

Read 2 more answers

I dont know functions

Irina-Kira [14]

Answer:

6, -8

Step-by-step explanation:

You need to find out the possible values of which X cannot equal

In fractions the only way that's possible is if the denominator= 0

Because everything in the denominator is being mulitplied this is pretty simple

We need either parantheses to equal 0

so we take them and solve for 0

we have

x-6= 0

x=6

x+8=0

x= -8

5 0

3 years ago

Quadrilateral ABCD is translated to get quadrilateral A'B'C'D'. vertex A is at (-5,2) , and vertex A' is ay (2,-2), quadrilatera

belka [17]

Answer:

(-1,3)

Step-by-step explanation:

Given that the quadrilateral ABCD is translated to get quadrilateral A'B'C'D'. The vertex A is at (-5,2) is translated to vertex A' is at (2,-2).

The translation is x-direction, a, is the difference of x-coordinates of both the points, a=2-(-5)=2+5=7.

The translation is y-direction, b, is the difference of y-coordinates of both the points, b = -2-2 = -4.

As all the points are translated by the same magnitude as well as in the same direction, so by adding a to x and b to y coordinate of any points, the translated point can be determined.

The vertex of point B is (-6,5), so, the vertex of the point B' would be (-6+a, 5+b)=(-6+7, 5+(-4))=(-1,3).

Hence, the vertex of point B' is (-1,3).

5 0

3 years ago

Find the y-intercept and interpret it.

Soloha48 [4]

Answer:

from what diagram

Step-by-step explanation:

6 0

3 years ago