1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nadezda [96]
3 years ago
12

A process manufactures ball bearings with diameters that are normally distributed with mean 25.1 millimeters and standard deviat

ion 0.08 millimeter. (a) [5pts] What proportions of the diameters are greater than 25.4
Mathematics
1 answer:
Katena32 [7]3 years ago
7 0

Answer:

The  proportions of the diameters that are greater than 25.4 millimeters is 5%.

Step-by-step explanation:

Given;

mean of the normal distribution, m = 25.1 millimeters

standard deviation, d = 0.08 millimeter

1 standard deviation above the mean = m + d = 25.1 + 0.08 = 25.18

2 standard deviation above mean =  m + 2d = 25.1 + 2(0.08) = 25.26

3 standard deviation above the mean = m + 3d = 25.1 + 3(0.08) = 25.34

4 standard deviation above the mean = m + 4d = 25.1 + 4(0.08) = 25.42

To obtain a diameter greater than 25.4, we select data after 4 standard deviation above the mean.

Data within 4 standard deviation above the mean is 95%

Data outside 4 standard deviation above the mean is 5%

Therefore, the  proportions of the diameters that are greater than 25.4 millimeters is 5%.

You might be interested in
PLEASE HELP I WILL GIVE BRAINLEST
Ira Lisetskai [31]
The theoretical probability of getting heads or tails is 1/2 the time.

1/2 of 150 = 75

 So theoretically you would get 75  heads and 75 tails.

The experiment got 84 heads, which is greater than 75, so it would be higher than the theoretical probability.

The answer is : <span>It is 6% higher than the theoretical probability.</span>
4 0
3 years ago
In the game of​ roulette, a player can place a ​$9 bet on the number 11, and have a 1/38 probability of winning. If the metal ba
damaskus [11]

Answer:

1. What is the expected value of the game to the​ player?

Expected value= -$0.47368

2. If you played the game 1000​ times, how much would you expect to​ lose?

Expected value= -$473.68

Step-by-step explanation:

1. What is the expected value of the game to the​ player?

Expected value can tell how much you will gain/lose every time you do the game. To find the expected value you need to multiply every value with its chance to occur. There are two types of events here, winning and losing. You have 1/38 chance of winning $315 and 37/38 chance of losing $9.  

The expected value will be:

expected value= 1/38 * $315 + 37/38*(-$9) = $8.2894 - $8.7631

expected value= -$0.47368

You are expected to lose $0.47368 every time you play

2. If you played the game 1000​ times, how much would you expect to​ lose?

Expected value calculated for each roll. If you want to know how much you gain/lose by multiple rolls, you just need to multiply the expected value with the number of rolls. The game has negative expected value so you are expected to lose money instead of gaining money. The money you expected to lose will be:

number of roll * expected value

1000 timer * -$0.47368/time= -$473.68

You are expected to lose $473.68 if you play the game 1000 times.

6 0
3 years ago
A RIGHT triangle has two other angles measuring x and 2x. What does x equal?
Marianna [84]

Answer:

x = 30

Step-by-step explanation:

because the interior angles of a triangle = 180° so if you subtract 90° you get 90. in order to get 90 you can use the equation x + 2x = 90 which you will then get x = 30

5 0
3 years ago
What is the slope of this graph
telo118 [61]

Answer: positive I think

Step-by-step explanation:

4 0
2 years ago
Consider this equation. 5/8 x = 1/2 x + 2 Generate a plan to solve for the variable. Describe the steps you'll use.
Keith_Richards [23]

Answer:

Step-by-step explanation:

5/8x = 1/2x + 2

5/8x - 1/2x = 2

46x = 2

x=16

So you want to get x by itself so you. First you get 5/8x and 1/2 and subtract 1/2 from both sides. Then find the common demonantor for both numbers. After use inverse operations to multiply both sides by the reciprocal of the fraction coefficient. Finally check the solution by substituting 16 for x in the original equation.

3 0
3 years ago
Read 2 more answers
Other questions:
  • What are the next three terms in the sequence?
    5·2 answers
  • Polynomial standard form for the square root of 7n^4
    7·1 answer
  • How can you make your answer (41-13i)/(25) into a+bi form?
    12·1 answer
  • Evaluate the following limit.
    6·1 answer
  • John is collecting vintage baseball cards and has about 25 he got from his dad. He is
    6·1 answer
  • A square has a side length of 4 cm. What is the length of the diagonal of the square? What is the length from the corner to the
    9·1 answer
  • Translate this sentence into an equation.
    8·2 answers
  • Y - 2x =3 Solve for Y
    14·2 answers
  • What is the distance between (5, -1) and (5, -4)? l' 2 8 --2 -2 I​
    8·2 answers
  • Write a number in which the value of the 8 is ten times greater than the value of the 8 in 8,304
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!