Innocent until proven guilty? In Japanese criminal trials, about 95% of the defendants are found guilty. In the United States, about 60% of the defendants are found guilty in criminal trials. Suppose you are a news reporter following four criminal trials.
a) If the trials were in Japan, what is the probability that all the defendants would be found guilty? What is the probability if the trials were in the United States?
b) Of the four trials, what is the expected number of guilty verdicts in Japan? What is the expected number in the United States? What is the standard deviation in Japan? What is the standard deviation in the United States?
c) As a U.S. news reporter, what is the smallest number of trials n you would need to cover to be at least 99% sure of two or more convictions? What is the smallest number of trials n you would need if you covered trials in Japan?

Answers

Answer 1

Step-by-step explanation:

Let X be the number of guilty defendants in Japan

Let y be the number in the US

we have n = 4

p = 0.95

a.) prob of trials in Japan

p(x=4)

= 0.95⁴

= 0.8145

prob of trials in US

p(X=4)

= 0.60⁴

= 0.1296

B. expected number in Japan

E(X) = n*p

= 4*0.95

= 3.8

we find the variance

= n*p(1-p)

= 4*0.95(1-0.95)

= 0.19

standard deviation for japan

= √0.19

= 0.4359

expected number for US

E(X) = n*p

= 4*0.60

= 2.4

we find the variance

= n*p(1-p)

= 4*0.60(1-0.6)

= 0.96

standard deviation for US

= √0.96

= 0.979

c. 2*4 = 8


Related Questions

If A = {x x is an even integer), B = {xx is an odd integer), C = {2, 3, 4, 5), and D = {8, 9, 10, 11), list the element(s) of the following set.
AND
An D= { } (Use a comma to separate elements in the set.)

Answers

Answer:

AnD = {8,10}

Step-by-step explanation:

A = {2, 4, 6, 8 ,10 ...}

B = {1, 3, 5, 7 ,9 ...}

C = {,2 ,3 ,4 ,5 ...}

D = { 8, 9 ,10 ,11 ...}

AnD = {8, 10}

Hellpppp I’m stuck......

Answers

I’m just gonna guess but I think 6

i think it’s five
Vertical angles are angles that congruent and opposite of each other

What is the factored form of this expression?
4x to the third power– 8x to the second power– 9x+ 18

Answers

4x^3-8x^2-9x+18

X(4x^2-8x-9)+18

PLEASE HELP ASAPPP!!!!!
Three coins are flipped. What is the probability that there will be two tails and one head?

Answers

3/8ths or 0.375 probability

What is the distance of -55 from zero?

Answers

Answer:

55

Step-by-step explanation:

The answer is 55 as distance is a scalar quantity that means quantities that depend on magnitude and not on direction. Therefore we cannot write - 55 as answer.

what is the vertex of y=x²+14x-9 ​

Answers

the vertex of y=x^2+14x-9 is
answer: (-7,-58)
(-7,-58) is the correct choice for u

Eric borrowed a total of $3000 from two student loans. One loan charged 4% simple interest and the other charged 3.5% simple
interest, both payable after graduation. If the interest he owed after 2 years was $215, determine the amount of principal for each
loan.

Answers

Answer:

$ 500 was the principal of the loan at 4%, and $ 2,500 was the principal of the loan at 3.5%.

Step-by-step explanation:

Given that Eric borrowed a total of $ 3000 from two student loans, and one loan charged 4% simple interest and the other charged 3.5% simple interest, both payable after graduation, if the interest he owed after 2 years was $ 215, to determine the amount of principal for each loan, the following calculation must be performed:

4 x 2 = 8

3.5 x 2 = 7

1500 x 0.08 + 1500 x 0.07 = 225

1400 x 0.08 + 1600 x 0.07 = 224

100 x 0.08 + 2900 x 0.07 = 211

500 x 0.08 + 2500 x 0.07 = 215

Therefore, $ 500 was the principal of the loan at 4%, and $ 2,500 was the principal of the loan at 3.5%.

The length of a rectangle is six times its width.
If the perimeter of the rectangle is 84 in, find its area.

Answers

Answer:

6yd=W The width of the rectangle is 6 yards. L=6W=6(6yd)=36 yards The length is 36 yards. A=36yd*6yd=216 sq yd ANSWER: The area is 216 square yards...

The area of a given rectangle is 216 square inches.

Given that, the perimeter of the rectangle is 84 inches.

We need to find the area of a rectangle.

What is the perimeter of a rectangle?

The perimeter of a rectangle is the total distance of its outer boundary. It is twice the sum of its length and width and it is calculated with the help of the formula: Perimeter = 2(length + width).

Let the width of a rectangle be x.

Given, that the length of a rectangle is six times its width. So, length=6x.

Now, 84=2(6x+x)

⇒14x=84

⇒x=6 inches

Then, length=6x=36 inches.

Area of a rectangle= Length×width=36×6=216 square inches

Therefore, the area of a given rectangle is 216 square inches.

To learn more about the area of a rectangle visit:

https://brainly.com/question/20693059.

#SPJ2

Pls Pls Pls help! Simplify the equation: [tex]\sqrt{\frac{1}{9} x^{2}y^{10}[/tex]

Answers

the answer is xy^5/3 .

Find the value for the side marked below.
Round your answer to the nearest tenth.
61°
135
y
y = = [?]

Answers

Answer:

[tex]65.4[/tex]

Step-by-step explanation:

In any right triangle, the cosine of an angle is equal to its adjacent side divided by the hypotenuse, or longest side, of the triangle.

Therefore, we have:

[tex]\cos 61^{\circ}=\frac{y}{135},\\t=135\cos 61^{\circ}=65.4492987333\approx \boxed{65.4}[/tex]

WILL MARK YOU IF YOU CAN HELP ME

Answers

Answer:

x= 62

first take linear pair angle with any line then once again with x then you're done

Answer:

x value is 62 degree

because they are vertically opposite angles

In the figure, KP = 50, KQ = 45, PQ = 38. What is RQ?​

Answers

Answer:

18

Step-by-step explanation:

Find the diagram attached

From the diagram

PR + RQ = PQ

PR + RQ = 38

PR = 38 - RQ

using similar triangle;

KQ/RQ = KP/PR

45/RQ = 50/38-RQ

Cross multiply

50RQ = 45(38-RQ)

50RQ = 1710 - 45RQ

50RQ + 45RQ = 1710

95RQ = 1710

RQ = 1710/95

RQ = 18

Hence the length of RQ is 18

What is
(481x10")(1.1x 10-4) in scientific notation?
5.291x 10-64
5.291x10
5.291x1012
5.291x1020

Answers

Answer:

5.291 * 10^4

hhhhhhhhhhhhhhhhh

for what values of x are these functions defined x - 1

Answers

Answer:

The function is defined for all real numbers.

which can be denoted as >> R

Find the volume of the prism.

Answers

Volume of prism= 6x(4+(1/5))x(8+(1/3))
Volume of prism= 3.024 yd^3

Explanation: Volume= L x W x H

A number pattern was created by dividing the previous term by 4. If the starting value for the pattern was 576, which of the following shows the resulting pattern?
A.
576, 144, 72, 9...
B.
576, 144, 36, 9...
C.
576, 144, 72, 5...
D.
576, 144, 36, 5...

Answers

Answer:

The answer is B!!!!!!!!!!!!

The graph of g(x) resembles the graph of f(x) = x2, but it has been changed.
Which of these is the equation of g(x)?

Answers

Answer:

B. g(x)=x²-3 b is my answer

Instructions: Find the area of the sector. Round your answer to the nearest tenth.

I’ll mark brainliest please help me

Answers

Answer:

[tex]area \: = \frac{165}{360} \times \pi {8}^{2} \\ = 92.1533845053 \\ = 92 \: in^{2} [/tex]

2x + 5y = 17
what is x
what is y

Answers

Answer:

x = (17 - 5y)/2

y = (17 - 2x)/5

Step-by-step explanation:

nothing else can be done here.

if you are looking for actual numbers as solution, then you have forgotten to put something important here.

to solve a system with 2 variables we need 2 equations. it cannot be solved with only 1 equation.

Identify the location of the point (-3, -2).

Answers

point S is where (-3, -2)

5-2(3-x)=4x+10

can anyone help me, if i cant give you the brainliest answer i will.

Answers

Answer:

-11/2 = x

Step-by-step explanation:

5-2(3-x)=4x+10

Distribute

5 - 6 +2x = 4x+10

Combine like terms

-1 +2x = 4x+10

Subtract 2x from each side

-1 +2x-2x= 4x-2x+10

-1 = 2x+10

Subtract 10 from each side

-1-10 = 2x+10-10

-11 = 2x

Divide by 2

-11/2 = 2x/2

-11/2 = x

Answer:

See below

Step-by-step explanation:

5 - 2 * (3 - x) = 4x + 10

5 - 6 + 2x = 4x + 10

-2x = 11

x = -5.5

HELP HELP, HELP NEEDED!!!!!!!!!!!

Answers

Answer:

x=-3

Step-by-step explanation:

because f(x) is "y" now because y is 6 if you look properly where the coordinate of y is 6 x is -3

PT=3x+3 and TQ=6x-6
Use the figure to the right to find the value of PT. T is the midpoint of PQ

Answers

Answer:

PT = 12 units

Step-by-step explanation:

Given that,

PT=3x+3 and TQ=6x-6

T is the midpoint of PQ.

If T is mindpoint of PQ, it means,

PT = TQ

Substitute all the values,

3x+3 = 6x-6

Taking like terms together,

3x-6x = -6-3

-3x = -9

x = 3

So,

PT = 3x+3

= 3(3) + 3

= 9+3

= 12

So, the value of PT is equal to 12 units.

List two numbers that are divisible by 9?

Answers

Answer:

3, 6, 12, 15

Step-by-step explanation:

3/12= 4

3/9= 3

Marlene is trying to estimate v 42. She uses this table of values:
Square 6.02 6.12 6.22 6.32 6.42 6.52
Value
36.0 37.2 38.4 39.7 41.0 42.3
Square 6.62 6.72 6.82 6.92 7.02
Value
43.6 44.9 46.2 47.6 49.0
What should she do next to find 42 to the nearest hundredth?
A. She should find the squares of numbers between 6.4 and 6.5.
ООО
B. She should find the average of 6.4 and 6.5.
C. She should find the squares of numbers between 6.5 and 6.6.
O D. She should estimate that 42 is 6.50,

Answers

B. She should find the average of 6.4 and 6.5 fry us soshdnsaohsxjx

Answer:

A

Step-by-step explanation:

Did the quiz

Find the value of x to the nearest tenth

Answers

Answer:

a^2+b^2=c^2

6^2+6^2=72

square root of 72

=8.49(3sf)

c^2-b^2=a^2

=3

x=3

answer : 3

step by step:

this may seem hard but it is easy.

the first thing to do is to look at the bottom of the shape it shows a right triangle that is missing the hypotenuse lets see how to solve for that:

name the hypotenuse  x

then write the equation

x^2= 6^2 + 6^2

x^2= 72

take both the square root of them

x = 8.5

next part is the rectangle and we see that it has been split into 2 right triangles which are the same but the cool part is that if we solve for one of the triangles we solve for the other we are going to do the same steps again notice now we are solving for the right angle that's not labeled if we solve that then that means we solve for the other triangle that is labelled x

first off we know that the hypotenuse is 9 and one angle is 8.5 so here is the equation:

x^2 = 9^2 - 8.5^2

x^2 = 8.75

take square root of both

x = 3

help
Sadie needs 3.1 yards to make one costume for each choir member in the play. How much fabric will she need if she has to make 5 costumes?
A.
15.5 yards
B.
10.5 yards
C.
18.6 yards
D.
16.5 yards

Answers

Answer:

A. 15.5 yards

Step-by-step explanation:

3.1 ×5=15.5

What is the complementary number of 16
I

Answers

Answer:

2

Step-by-step explanation:

The sum of two numbers is 69. One number is 15 less than the other. Find the numbers.

Answers

Answer:

58+-43=15

Step-by-step explanation:

Given: In this figure, `/_AED` and `/_BEC` form a pair of vertical angles. Prove: `/_AED ~= /_ BEC `. Match each statement to its corresponding reason. Drag the items on the left to the correct location on the right.

Answers

Answer:

Step-by-step explanation:

The matched statement to its corresponding reason for the given alternate interior angles as:

Given: Let points A, B, and C form a triangle.

definition: Let stackrel(harr)(DE) be a line passing through B, parallel to "bar(AC)", with angles labeled as shown.

Congruent angles: m∠1=m∠4, m∠3 = m∠5

Linear pair theorem: m∠4+m∠2+m∠5 = 180°

As per the shown figure,

Given:

Let points A, B, and C form a triangle.

Defining a parallel line and labeling angles:

Let stackrel(harr)(DE) be a line passing through B, parallel to "bar(AC)", with angles labeled as shown.

Alternate Interior Angles Theorem:

∠1=∠4

∠3 = ∠5

Congruent angles have equal measures:

m∠1=m∠4

m∠3 = m∠5

Definition of a straight angle and angle addition:

m∠4+m∠2+m∠5 = 180°

Substitution:

m∠1 + m∠2 +m ∠3 = 180°

Learn more about Alternate exterior Angles here:

https://brainly.com/question/23134598

#SPJ4

Other Questions
This process of protein synthesis occurs similarly in most organisms due to the fact that it is the same universal ____ molecule that contains the instructions for it.A. DNAB. RNA write the past tense of love write hurt watch come begin clean talk meet walk get become hold catch fix buy cost hate bring Research the different types of body language the people use in different cultures. Although diseases were widespread in North America, colonists were less susceptible than in Europe because a. the American population was younger and more dispersed. b. the colonies had much better doctors than England. c. American cities were cleaner than their European counterparts. d. Americans had been exposed to most diseases in Europe and had built immunity. e. the diseases themselves were not as virulent as their European cousins. During August, the receipts and distributions of Material No. B4G9 are as follows: Received Aug. 31,100 units at $15 161,700 units at $17 29 900 units at $18 Issued Aug. 11 700 units for Job 116 181,900 units for Job 117 30 800 units for Job 118 a. Determine the cost of each of the three issues under a perpetual system, using the first-in, first-out method. Skeletal muscles are:A: easily damaged B: attached to bones C: involuntary muscles D: found inside organs Shops and business sometimes employ professional sign writers. Do we still need professional sign writers or is this a dead/dying art? What was Parliament's problem with James II that led to the GloriousRevolution?A. He became a Catholic and tried to rule Britain without Parliament.B. He was ill, and Parliament was afraid he would die young.C. He did not believe in war, making England weak and easy toattack.D. He was not married and had no children to rule after him. Which of the following is not equal to a ratio of 5 to 2?A. 25: 10 C.35: 15B. 35: 14 D. 40:16 more pts first 2 so hurry up What is the genotype of an organism?A. The genotype is the DNA sequences of this gene on a homologous pair of chromosomes.B. How the genes are expressed resulting in the physical appearance of the organism. A collection of 39 coins consists of dimes and nickels. The total value is $2.75. How many dimes and how many nickels are there? Consider the reaction between solid C and O2 gas which makes CO2;C+02 -> CO2If we have a 14 L container of O2 gas at a pressure of 3.0 atm and a temperature of 298 K and we add 36 g of solid C to thecontainer, then how many grams of CO2 will be produced by this reaction? Point B is the image of point A when point A is rotated about the origin. What is known about point A and B?On a coordinate plane, point A is (negative 3, 4) and point B is (4, 3).Point B is the result of a 180 rotation.Point A and B have the same x-coordinate.Point B is the result of a 90 counterclockwise rotation.Point A and point B are the same distance from the origin. What is the name of a network of interconnected food chains showing the energy flow through an ecosystem? 2x10+3a=59 What is a? Find the value of the polynomial when x=1 and y=-2 Question 10 of 10 To find the inverse of f(x) = 2x - 1, Patel begins by replacing f(x) with y. He then switches x and y. What is the next step? A. Replace y with f-1(x). B. Subtract 1 from both sides of the equation. C. Solve the equation for y. O D. Solve the equation for x. SUBMIT change into negative Sita has a pen In April 2010, an oil rig exploded in the Gulf of Mexico. Millions of gallons of oil leaked into the Gulf, devastatingwildlife. Scientists tried to clean up the spill in a variety of ways. One approach involved the use of oil-eatingbacteria. However, scientists were divided on its effectiveness. Some maintained that the bacteria were "fairlyfast" in cleaning the spill. Officials reported that the Gulf would make a full recovery by 2012. Yet Samantha Joye,a marine scientist, disagreed. She conducted a study of the sea floor. She found that the bacteria had cleanedonly 10 percent of the oil. She reported that the Gulf would take many years to recover.Do It!The reports wereignoredB conflictinghumorousD appreciated