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4 years ago

If n = 10 and p = 0.70, then the standard deviation of the binomial distribution is

1 answer:

6 0

For a binomial distribution, the variance is
$\sigma^2=npq=np(1-p)=10*0.7*0.3=2.1$
$\sigma=standard\,deviation=\sqrt{2.1}=1.449$ (to 3 decimal places)

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Calculate the difference between double 50 and half of 80

Alborosie

Answer:

Step-by-step explanation:

double 50 is 100 half of 80 is 40 answer is 60

hope this helps

6 0

3 years ago

A tire company has plants in Chicago and Detroit. The Chicago plant can make 600 radial and 100 standard tires per day. The Detr

melomori [17]

Answer:

To minimize the cost, the Chicago plant should run 30 days and the Detroit plant should run 20 days.

Step-by-step explanation:

This is a linear programming question, in which there is a function to optimize (minimize cost) and restrictions, all linear functions.

The objective function is Cost:

$C=4000H+3000D$

C: cost function

H: days of operation for Chicago plant

D: days of operation for Detroit plant

The restrictions are:

- Minimum requirements for radial tires:

$600*H+300*D\geq24,000$

- Minimum requirements for standard tires:

$100*H+100*D\geq5,000$

- Days are positive integers

$H,D\geq0$

We have 3 points in which 2 of the constraints are saturated. In one of this three points is the minimum cost.

We will evaluate them to find the minimum cost:

Point 1: H=0, D=80

$C=4,000*H+3,000*D\\\\C=4,000*0+3,000*80=240,000$

Point 2: H=50, D=0

$C=4,000*H+3,000*D\\\\C=4,000*50+3,000*0=200,000$

Point 3: H=30, D=20

$C=4,000*H+3,000*D\\\\C=4,000*30+3,000*20=120,000+60,000=180,000$

The third point minimizes the cost.

To minimize the cost, the Chicago plant should run 30 days and the Detroit plant should run 20 days.

4 0

3 years ago

Read 2 more answers

Drag each tile to the correct box. Match the expression to the exponent property that you use first to simplify the expression.

IrinaK [193]

sorry i did the best i could

8 0

3 years ago

What is the answer? ;3

aleksandrvk [35]

First you add the numbers

6/2*3

Now you calculate the expression

6/2*3

The answer is 9, therefore 9 is your answer

3 0

3 years ago

If Q = 44° then m ST = ______ degrees R = _____ degrees

melomori [17]

Basically, Q is an angle. An angle has an initial side and a terminal side. The initial side is QS, The terminal side is QT. The initial side and the terminal side both intersect the circle. The initial side intersects the circle at point S. The terminal side intersects the circle at point T. This forms arc TS.
Angle Q is what is known as an inscribed angle. Anytime you have an inscribed angle, it will always cut across some arc. The measure of that angle will always be 1/2 the measure of the arc.
We're given that angle Q = 44 degrees. This means that the measure of arc TS will be twice the measure of angle Q.

angle(q)=angle(r) so ans =44

3 0

3 years ago