A manufacturer knows that their items have a normally distributed lifespan, with a mean of 8.8 years, and standard deviation of 2.2 years.

If 5 items are picked at random, 5% of the time their mean life will be less than how many years?

Answers

Answer 1
First of all we need o use the standard normal table to see what value if z will have 10% of the area (probability) to the left of it. We see that z value is approximately z = -1.282

Now all we have to do is calculate the value of x that corresponds to this value of z. We have

( x - µ ) / σ = -1.282 Substituting in the known values, we have

( x - 4.4 ) / 1.3 = -1.282 and x = 2.73 years

Related Questions

if the temperature fell 2 degrees for 8 days in a row, which expression would best represent this situation​

Answers

Answer:

C

Step-by-step explanation:

Answer:

I think C. -2×8

Step-by-step explanation:

bc for 8 days it is going down 2 degrees

The function g is defined by the following rule.
g(x)=(1/5)^x
Find g(x) for each x-value in the table.

Answers

Answer:

[tex]g(-2) = 25[/tex]

[tex]g(-1) = 5[/tex]

[tex]g(0) = 1[/tex]

[tex]g(1) = \frac{1}{5}[/tex]

Step-by-step explanation:

Given

[tex]g(x) = \frac{1}{5}^x[/tex]

Solving (a): When x = -2

This gives:

[tex]g(x) = \frac{1}{5}^{(-2)[/tex]

[tex]g(x) = \frac{1}{5}^{-2[/tex]

[tex]g(x) = 5^2[/tex]

[tex]g(-2) = 25[/tex]

Solving (b) When x = -1

This gives:

[tex]g(x) = \frac{1}{5}^{-1}[/tex]

[tex]g(-1) = 5[/tex]

When x = 0

This gives:

[tex]g(x) = \frac{1}{5}^0[/tex]

[tex]g(0) = 1[/tex]

When x = 1

This gives:

[tex]g(x) = \frac{1}{5}^1[/tex]

[tex]g(1) = \frac{1}{5}[/tex]

when five is subtracted from
4 times a number and the
remainder is divided by 3, the
result become 7. what is the
number?​

Answers

Hope it helps u mate.......

Find the areas of these parallelograms, drawn on a centimetre grid.
b)
a)

Answers

Answer:

a-16cm

b-12cm if not iwill look again

Step-by-step explanation:

Area of the parallelograms are :(a) = 16 cm² and (b) = 12 cm² which is drawn on a centimeter grid.

What is Parallelogram?

A parallelogram is defined as a special type of quadrilateral that has both pairs of opposite sides parallel and equal. A parallelogram is a square and a rhombus is a square.

The formula to calculate the area of a parallelogram can thus be given as,

Area of parallelogram = b × h square units

where b is the length of the base and h is the height or altitude

For parallelogram (a),

length of the base = 4 cm

the height or altitude = 4 cm

Area of parallelogram (a) = b × h =  4 × 4

Area of parallelogram (a) = 16 cm²

For parallelogram (b),

length of the base = 2 cm

the height or altitude = 6 cm

Area of parallelogram (b) = b × h =  2 × 6

Area of parallelogram (b) = 12 cm²

Learn more about parallelograms here:

brainly.com/question/11220936

#SPJ2

48 bilyenin 8de 1 i kaç tanedir ​

Answers

Answer:

Huh-

Step-by-step explanation:

Adrian is walking along the edge of a circular pool. The distance from one end of the pool to the other and through its center is
24 feet
What distance, rounded to the nearest hundredth of a foot, did Adrian cover to complete one lap of the pool by walking along its
edge?
O A
452.39 feet
ов.
37.70 feet
Ос.
75.40 feet
OD
150.80 feet

Answers

Answer:

b

Step-by-step explanation:

explain natural substance​

Answers

Answer:

This is your answer ☺️

Biotic materials. Wood: rattan, bamboo, bark
Natural fiber: silk, wool, cotton, flax, hemp, jute, kapok, kenaf, moss

6) What would be the next three terms in the sequence 1, 3, 9, 27.....? *
2 points

Answers

81


explanation: you are multiplying by 3 each time. 27*3 is 81.
it’s 81!!!!!!!!!!!!!

Three puppies weigh 1 1/16 pounds, 1 3/16 pounds, and 15/16 pound. You are carrying all three in a basket. Find the total weight of the three puppies.

Answers

Answer:

3 3/16

Step-by-step explanation:

1 1/16+1 3/16+15/16=3 3/16

1 1/16 + 1 3/16 = 2 1/4 + 15/16= 3 3/16 pounds

In Jamie's pocket there are 45 coins.
The coins are either dimes or nickels.
The ratio of dimes to nickels is 2 : 3.
How many dimes does Jamie have?
dimes.
Jamie has

Answers

D:N
2 :3
Add them together to get the total which = 5
5 = 45
2 ?
= 18
No of dimes is 18

Answer:18

Step-by-step explanation: 45 ÷ 5 = 9

9 × 3 = 27

9 × 2 = 18

18:27

He has 18 dimes.

For every nine bags of peanuts a circus sells, they sell four boxes of popcorn. If the circus sold 225 bags of peanuts, how many boxes of popcorn did they most likely sell?

Answers

Answer:

2025

Step-by-step explanation:

Please really need help on this please

Answers

0,1 0,7 I think I use to do these

What is the equation of a circle with the center(-9,-5) and radius equals 9

Answers

Answer:

(x+9)^2+(y+5)^2=81

Step-by-step explanation:

(x-h)^2+(y-k)^2=r^2

(h,k)=center

r=radius

so if you just insert the center (-9,-5) and the r with 9

(x-(-9))^2+(y-(-5))^2=9^2

(x+9)^2+(y+5)^2=81

Hope that helps :)

Answer:

(x + 9)^2 + (y + 5)^2 = 81

Step-by-step explanation:

Hope this helps

Help Me As quick as possible

Answers

Answer:

(A)

Step-by-step explanation:

Answer:

C and D are greater than 250.

Step-by-step explanation:

a = 225

b = 41 1/6

c = 500

d = 281 1/4

please help I appreciate it also have a good day!​

Answers

17 to the power of 1
17 to the power of 1 its soo easy

Plz help meh
A creature on the moon throws a rock off a cliff. The height of the rock above the surface of the moon, in meters, t seconds after it is thrown is given by h(t) = -t^2 + 8t + 10. When does the rock hit the surface of the moon?
Plz give step by step solution.

Answers

Answer:

Step-by-step explanation:

The rock will hit the surface when its height equals zero.

t^2-8t-10=0

t^2-8t=10

t^2-8t+16=10+16

(t-4)^2=26

t-4=+(26^(1/2))

t=4+(26^(1/2))

t=9.1s

how to prove it's an identity
sin y + sin 3y + sin 5y + sin 7y = 4 cos y cos 2y sin 4y

Answers

Answer:

0.9777102203

Step-by-step explanation:

the identity is 0.9777102203

Piet Mondrian, a Dutch artist, painted images of rectangles and squares. The image shown is an example of art similar to Mondrian's art. L. What is the ratio of orange rectangles to green rectangles?​

Answers

I love anime

Step-by-step explanation:u

mathew paid a total of $68.00 for 8 pepporoni pizzas

Answers

Answer:

Each pizza cost $8.50

Step-by-step explanation:

Identify the graphed linear equation.

Y= 1/4x + 5

Y= 1/4x -5

Y= 1/4x + 5/2

Y= 1/4x -5/2

Answers

Answer:

Y=1/4x-5/2

Step-by-step explanation:

The slope is rise/run or 1/4 in this case. The y-intercept is clearly located at -2.5, or -5/2.

help help help pls pls

Answers

Answer:

-1 : -7

0 : -4

1 : -1

2 : 2

3 : 5

Step-by-step explanation:

Plug in x to the x in the equation

-4/11 y = -16/33 Helppp its Equations with Rational Coefficients!!

Answers

y= 4/3

Divide both sides by -4/11.

-11 x -16 = 4/3 :)
4. 33

PLEASE
Find the mean, median, mode, and range of the following data set.

4, 3, 2, 4, 6, 6, 4, 3, 3, 4, 5

Mean:

Median:

Mode:

Range:

Answers

Answer:

Mean: 4

Median: 4

Mode: 4

Range: 4

Hope this helps

mean: 4

median: 4

mode: 4

range: 4

2 3 3 3 4 4 4 4 5 6 6

What is the measure of Angle A?
A
6x - 20
3x +4

Answers

Answer:

A=152°

Step-by-step explanation:

6x-20=3x+4

3x=24

x=8

6x-20=6(8)-20=48-20=28

A=180-28=152

Emily and Andy each go to a hardware store to buy wire. The table shows the relationship between the cost and the length of wire.

Emily needs 21 feet of wire. How much will she spend on wire?

Answers

Answer:

630 dollars is the answer

Answer:

15.12

Step-by-step explanation:

you multiply 120 by 3

the quotion of a number and 5 is eqaul to -7. what is the number?
a.-2
b.-12
c.35
d.-35

Answers

Answer:

D. - 35

Step-by-step explanation:

- 35 ÷ 5 = -7

This is the only equation in which you get the correct answer.

Hope that helped you and have a great day!

The answer is D-35 all you do is multiply

Finding angle measure pls help

Answers

58

Hope it’s right
Best luck with your studying

Hello please help me

Answers

Answer:

A

Step-by-step explanation:

its D option..........

вычислите: 7/8:(-2 1/4):5/6:(2 1/2):(-6/25)​

Answers

Answer:

= 3087 / 320

Step-by-step explanation:

I need help with this I put this out 3 times I need help

Answers

Prompt
What is a row?
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