1) Let X represent the number of tires with low air pressure on a randomly chosen car. The probability of distribution of X is as follows:

X 0 1 2 3 4

P(X) 0.1 0.2 0.4 0.2 0,1


a) Find the probability of 1 tire with low air pressure P (1) =


b) Find the probability of more than 2 tires having low air pressure P (more than 2) =


c) P (all 4 tires) =


d) Compute the expected number of tires with low air pressure.


e) Compute the standard deviation for the number of tires with low air pressure.

Answers

Answer 1

Answer:

0.2 ; 0.3 ; 0.1 ; 2

Step-by-step explanation:

X 0 1 2 3 4

P(X) 0.1 0.2 0.4 0.2 0,1

a) Find the probability of 1 tire with low air pressure P (1) :

From probability distribution table Given :

P(1) = 0.2

b) Find the probability of more than 2 tires having low air pressure P (more than 2) =

P(x > 2) = p(3) + p(4)

P(x > 2) = 0.2 + 0.1 = 0.3

c) P (all 4 tires)

From the table :

P(x = 4) = 0.1

d) Compute the expected number of tires with low air pressure.

E(X) = Σx * p(x)

E(x) = (0*0.1) + (1*0.2) + (2*0.4) + (3*0.2) + (4*0.1) = 2


Related Questions

What is the MODE of the data - (12, 8, 6, 12, 16, 12) *

help plsssss

Answers

Answer: Mode = 12

Explanation: The mode is the most frequent value, so it is the value that shows up the most. In this case, that would be the value "12" since it shows up three times (while the other values only show up once).

Answer:

12

Step-by-step explanation:

For future reference mode means MOST. So in this data, number 12 is repeated the most. That would mean the MODE is 12.

Good Luck!!!

There are approximately 3,000 bass in a lake. The population grows at a
rate of 2% per year. What is the average rate of change of the population
of bass from Year 1 to Year 4? Round your answers to the nearest tenth.

Answers

62.4 bass per year from year 5 to year 8, the average rate of change from the population was about 67.6 best per year the change of rate increase was about

Which statement best describes the function represented by the graph?
The function is increasing on the interval (-2, 0)
and decreasing on the interval (0, 0).
10
8
The function is decreasing on the interval (-0, 0)
and increasing on the interval (0.00).
6
2
The function is increasing on the interval (-0, 0).
2 4 6 8
-4-20
-2
4
The function is decreasing on the interval
(-00, 00
My Progress

Answers

Answer:

this is i-ready, right?? if so I cant provide any info

Step-by-step explanation:

my bad if it's not

Consider the quadratic equation x^2 +7x+8=0. Which of the following is the correct form after substituting a, b, and c into the
Quadratic Formula?

Answers

Answer:

ax²+bx+c=0

Being the standard formula

Step-by-step explanation:

By direct substitution

a=1

b=7

c=8

If the quadratic equation x² +7x+8=0 then the correct form after substituting a, b, and c into the Quadratic Formula is x=-7±√7²-4(1)(8)/2(1)

What is quadratic equation?

A quadratic equation is a second-order polynomial equation in a single variable x , ax²+bx+c=0. with a ≠ 0 .

The given quadratic equation is x² +7x+8=0.

The quadratic equation standard form is ax²+bx+c=0

When we compare both the equations

The value of a is 1, b is 7 and c is 8

x=-b±√b²-4ac/2a

x=-7±√7²-4(1)(8)/2(1)

=-7±√49-32/2

x=-7±√17/2

Hence, if the quadratic equation x² +7x+8=0 then the correct form after substituting a, b, and c into the Quadratic Formula is x=-7±√7²-4(1)(8)/2(1)

To learn more on Quadratic equation click:

https://brainly.com/question/17177510

#SPJ2

answers are
60m cubed
360m cubed
1130m cubed
2260m cubed

Answers

Answer:

≈ 1130 m³

Step-by-step explanation:

The volume (V) of a cylinder is calculated as

V = πr²h ( r is the radius and h the height )

Here r = 6 and h = 10 , then

V = π × 6² × 10 = π × 36 × 10 = 360π ≈ 1130 m³

Tatiana practiced a total of 12 hours last week to prepare for her gymnastics meet. The line plot shows how long she practiced on the first six days of the week. If Tatiana practiced every day last week, how long did she practice on the last day?

Answers

Answer:

nigrto

Step-by-step explanation:

Help plzz I need the answer real quick plz type it out don't send a file to me!!

Answers

The answer is B =5.19

resuelve la inecuación

(3x<15)

Answers

Answer:

x<5

Step-by-step explanation:

(3x<15)

Divide both sides by 3. Since 3 is positive, the inequality direction remains the same.

x<15/3

Divide 15 by 3 to get 5.

x<5

What is the constant of proportionality in the table below?

Answers

Answer:

3

Step-by-step explanation:

The constant of proportionality (or the slope) is 3.  Observe that if x increases by 2 (from 1 to 3), y increases by 6 from 3 to 9, so that m = rise/run = 6/2, or 3.

3. The constant of proportionality is how much it increases by or decreases by each time. Since the numbers in x and y are increasing by 3, that would be your answer.

Ex:
X: 1x3=3 3x3=9 9x3=27 27x3=81
As you can see every time you multiply by 3
it would equal the next number in the table. This applies for the y values as well.

Evaluate the expression 7×18+45÷3×2

Answers

Answer:

156

Step-by-step explanation:

7 * 18 = 126

126 +45 / 3 * 2

45 / 3 = 15  * 2 = 30

126 + 30 = 156

Answer:

156

Step-by-step explanation:

what is the cost of 20pens is rs 1200,what is the cost of one pen​

Answers

Answer:

rs 60

1200/20=60......

HELP WILL MARK BRAINLY

Answers

Don’t click on that link it’s a scam

Joey invests in a CD where he will earn 5.5%
simple interest. If he deposits $1,400 in the
account, what will his total, including the
interest, be after 6 months?

Answers

You need to find the interest earned first
I=PRT
I=1400*0.055*0.5
I=$38.50
Now add the principle and the interest
$1400+$38.50
$1438.50

Write a number less than 50 that has at least six factors.
List at least six factors of the number you choose.

Answers

Answer:

the number can be 12

1 x 12 = 12

2 x 6 = 12

3 x 4 = 12

what do you call a polygon with nine sides?
a.quadrilateral
b.pentagon
c.hexagon
d.nonagon​

Answers

Answer: nonagon

Step-by-step explanation: quadrilaterals: a shape that has four sides

hexagon: a shape with 6 sides

pentagon: a shape with 5 sides

nonagon: a shape with 9 sides

So the answer is D

HELP NO DECIMALS!!!!!!!! Please I need this done almost due....

Answers

Answer: 432cm^3

Step-by-step explanation:

PLEASE PLEASE PLEASEEE HELP I DONT UNDERSTAND

Answers

Answer:

29.5 times pi or 3.14

Step-by-step explanation:

In a recent year in Tennessee, there were 55 telephones for every 100 people. What was the ratio of phones to people?

Answers

Answer:

11:20

Step-by-step explanation:

Telephone: People

55:100

divide both sides by 5

11:20

Simplify the expression: (23x + 6) - (x - 7)

Answers

Answer:

22x + 13

Step-by-step explanation:

Hopes this helps. Mark as brainlest plz!

We randomize a sample for all the following reasons EXCEPT:

A. to generalize our results to the population

B. to ensure a representative sample

C. to ensure the sample is not too large

D. to eliminate selection bias

Answers

Answer:

C

Step-by-step explanation:

Someone please help me

Answers

ofc i can help! hold up m y mom is vcalling

Remington Company purchased office equipment for use in the business with an invoice price of $28,000. The company paid $1,500 to have the equipment delivered and another $500 to have it installed. The company paid cash for the transportation and installation costs and signed a note for the invoice price of the new equipment.

Answers

So we are all going to the rent house I

Write an equation of the line below

Answers

Answer:

y = 4/5x - 2

Step-by-step explanation:

To create an equation with just a line compare two points on the graph and see how far the x and y points are on the graph then put them into a fraction with y over x then find the y intercept or find where the x coordinate equals 0 in this case it was (0, -2). Now put it all together:

y = mx + b

mx = comparison of two points

b = y intercept

Find the length of side x in simplest radical form with a rational denominator.
45°
X
45°
V3

Answers

Answer:

[tex] \sqrt{6} [/tex]

Step-by-step explanation:

[tex] \sin \: 45 \degree = \frac{ \sqrt{3} }{x} \\ \\ \frac{1}{ \sqrt{2} } = \frac{ \sqrt{3} }{x} \\ \\ x = \sqrt{2} \times \sqrt{3} \\ \\ x = \sqrt{2 \times 3} \\ \\ x = \sqrt{6} [/tex]

Answer:

√6

Step-by-step explanation:

Find the length of side x in simplest radical form with a rational denominator.

√6

In circle S with the measure of angle RST = 102 and RS = 6 units, find the length of arc RT. Round to the nearest hundredth

Answers

Answer:

10.68

Step-by-step explanation:

\text{Arc Length}=

Arc Length=

\,\,\frac{\text{Central Angle}}{360}(\text{Circumference})

360

Central Angle

​  

(Circumference)

RT=

RT=

\,\,\frac{102}{360}(2 \pi6)

360

102

​  

(2π6)

RT=

RT=

\,\,10.68

10.68

A shirt originally cost $41.10, but it is on sale for $36.99. What is the percentage decrease of the price of the shirt? If necessary, round to the nearest percent. A. 10% B. 90% C. 11% D. 8%

Answers

Answer:

10%

Step-by-step explanation:

The first step is to calculate the decrease

Original price= $41.10

New price= $36.99

= 41.10-36.99

= 4.11

4.11/41.10 × 100

= 0.1×100

= 10%

Hence the percentage decrease is 10%

coterminal angles
HELP what is the coterminal angle for -230° in the range of (0,360°)

Answers

Answer:

The coterminal angle of -230º is 130º.

Step-by-step explanation:

Coterminal angles are those whose sides start and end at the same point, therefore sharing a common side. To obtain the coterminal angle of a negative angle, 360º must be added to the value of said negative angle. Therefore, the coterminal angle of -230º arises from the following calculation:

-230 + 360 = X

130 = X

Therefore, the coterminal angle of -230º is 130º.

Find the value of x in the triangle

Answers

Answer:

√41

Step-by-step explanation:

Use a² + b² = c²

a = 4

b = 5

4² + 5² = c²

4² = 16

5² = 25

16 + 25 = c²

41 = c²

You need to get ² away from c, so square root both sides.

√41 = √c²

√41 = c

√41 is in its simplest form, so it is left as √41.

which expression has a value of 16 when x=2

Answers

Answer:

Step-by-step explanation:

point sorry

In circle R with QRS=90 and QR= 3 units find the length of arc QS round to the nearest hundredth

Answers

Hello, I Am BrotherEye

Answer:

27.92 units

Step-by-step explanation:

Radius (qr) = r = 16 units

<QŘS = θ = 82°

Length of an arc = (Θ / 360) * 2πr

L = (θ / 360) *2πr

L = (82 / 360) * 2π * 16

L = 0.2777 * 100.53

L = 27.917 units

L = 27.92 unit

Best Of Luck

~

BrotherEye

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