Mathematics College

Find the Z-scores that separate the middle 22% of the distribution from the area in the tails of the standard normal distribution.
The Z scores are _____?
Find the value of z a The value of α = 0.27
The value of z 0.27 is _____
Find the Z-score such that the area under the standard normal curve to the left is 0.33
_____ is the z - score such that the area under the curve to the left is 0.33.

Answers

Answer 1

Answer:

0.279

0.613

-0.44

Step-by-step explanation:

The Zscore that seperates the middle 22% of the distribution ; could be obtained thus. The midpoint is the mean and the probability to either the right or left could be obtained.

To obtain the Zscore that seperates the middle 22% is equivalent to :

The probability to the left of the distribution :

P(x < (0.5 + 0.22/2) = p(x < 0.61)

Using the Z probability calculator :

P(x < 0.61) is equivalent to a Zscore of 0.279

α = 0.27

Z(1 - α) = Z(1 - 0.27) = Z0.73 = p(Z < 0.73) = 0.613

P(x < 0.33) = - 0.44 (Z probability calculator)

Related Questions

Amanda financed a new living room set at the furniture store for $2,700. The store offered no interest for 6 months or 20 percent annually if the balance was not paid in full prior to the end of the interest free period. How much interest will she need to pay if she lets the account go for 6 months and 1 day before paying the bill?

Answers

Answer:

She will need to pay $269.36 in interest if she lets the account go for 6 months and 1 day before paying the bill.

Step-by-step explanation:

Given that Amanda financed a new living room set at the furniture store for $ 2,700, and the store offered no interest for 6 months or 20 percent annually if the balance was not paid in full prior to the end of the interest free period, to determine how much interest will she need to pay if she lets the account go for 6 months and 1 day before paying the bill, the following calculation must be performed:

((2,700 x 0.2) / 365) x 182 = X

(540/365) x 182 = X

1.48 x 182 = X

269.36 = X

Therefore, she will need to pay $ 269.36 in interest if she lets the account go for 6 months and 1 day before paying the bill.

A number is doubled and then increased by seven. The result is seventy-one. What is the original number?

Answers

Answer:

i think its 43

Step-by-step explanation:

2 x X + 7 = 93

substract 7 from both sides then divide both sides by 2

The perimeter of the figure below is 112.8 m. Find the length of the missing side.

Answers

Answer: 6.6 m

Add known sides and subtract the sum from the given perimeter.

Answer:

6.6 m

Step-by-step explanation:

33.8 + 2(14.1) + 3(9.1) + 16.9 = 106.2

112.8 - 106.2 = 6.6

Choose the correct cross section for each shape.

Answers

Answer:

I choose 11 and 12 because each present half

3X+2Y=5Y+2X-11 How do i show my work for this?

Answers

Answer:

3x + 2y = 5y + 2x -11

-3x                 -3x

2y = 5y -x -11

-5y   -5y

-3y = - x - 11 (divide by -3)

y = - x - 11/3

solve for y


1/4y + 3/6 = 2/3

Answers

Answer:

y  =  2 /3

Step-by-step explanation:

how many is 50% of a class?

a.1/3
b.1/2
c.1/4
d.5/6​

Answers

Answer:

B

Step-by-step explanation:

50 is half of something like if u give your friend half of your cookie you gave them 50% of it

Answer:

b) 1/2

Step-by-step explanation:

1/2 is 50% of a class.

→ 100 × 1/2

→ 50

Hence proved.

Relationships in Figures

If one measurement of a golden rectangle is 6.1 inches, what is the other measurement?

a. 4.482
b. 7.718
c. 9.87
d. 1.618

Please select the best answer from the choices provided

Answers

Answer:

C. 9.87

Step-by-step explanation:

I calculated it logically

PLEASE ANSWER NOW!!!! I JUST NEED TO KNOW IF ITS CONTINUOUS OR DISCRETE but for other people answer the others too.
A carpet installer charges a flat rate of $40, plus $1.50 per square foot for labor. So, the total cost for labor depends on the amount of carpet installed.

The relationship between the total cost for labor and the amount of carpet installed is
A.continuous
B.discrete
.

The domain of the relation is x ≥
A. 0
B. 1.5
C. 40
.

The range of the relation is y ≥
0
1.5
40
.

Answers

Answer:

1. continuous2. 03. 40

ASAP
I’m taking a final that’s almost due 23. A clerk needs to price a cashmere sweater returned by a customer. The customer paid a total of $222.36 that included a gift wrapping charge of $4 and a 9% sales tax. What price should the clerk mark on the tag? A. $222.00 B. $200.33 C.$198.71 D.$ 200.00

Answers

Answer:

$200.33

Step-by-step explanation:

Total amount paid = $222.36

Wrapping charge = $4

Sales tax = 9%

The price would be:

Cost + sales tax amount = (Total amount paid - wrapping charge)

Cost + sales tax amount = (222.36 - 4)

Cost + sales tax = 218. 36

Subtracting the sales tax :

Let cost = x

x + 0.09x = 218. 36

1.09x = 218.36

x = 218.36 / 1.09

x = $200.33

There are five pizzas at
the party. Half of them
have already been eaten.
How many pizzas are
left?

Answers

There would be 2.5 pizzas left since you cannot split the number 5 into a complete whole number. So 2 and a half would be the answer.

Find the graph of the inequality y+2<1/4(x-4)

Answers

Answer:

0

Step-by-step explanation:

What is the slope-intercept form of an equation.
Use letters m, b, x, and y in the equation.

Answers

Answer:

y=mx+b

Step-by-step explanation:

Find angle x and choose the reason for brainlest

Answers

Answer:

Step-by-step explanation:

X equals 58° because 58° and x are corresponding angles on parallel lines.

The weights of baskets of strawberries are normally distributed with a mean of 3.8 ounces and a standard deviation of 1.1 ounces. One grocery store advertises that the weight of their strawberries is in the 97.5th percentile. How many ounces do their strawberries weigh?
A 3.8 ounces
B 4.9 ounces
C 6 ounces
D 7.1 ounces

Answers

Answer:

6 ounces

Step-by-step explanation:

this one is mainly elimination. 3.8 and 4.9 cant be because they're too close to the mean. and 7.1 is too far. you can also use z-score. the z score of .975 is 1.96 we can plug that into out formula so

1.96=(x-3.8)/1.1

multiply both sides by 1.1 and then add 3.8

you can also use scientific calculator.

second vars, 3, the area is your percent so .975, the u is mean so 3.8, the o is standard deviation so 1.1

Solve for x. Assume that lines which appear tangent are tangent.

CAN YALL HELP ME ASAP

Answers

Answer:

48

Step-by-step explanation:

By intersecting tangent and secant theorem:

[tex]27(27 + x) = {45}^{2} \\ 729 + 27x = 2025 \\ 27x = 2025 - 729 \\ 27x = 1296 \\ x = \frac{1296}{27} \\ x = 48[/tex]

Yes the answer is 48.

determine the arc of length AB. Give your answer in TWO DECIMAL PLACES.

Answers

Answer:

19.47m

Step-by-step explanation:

Radians = π/180 * degree

0.0174 x 124 = 2.164 rad

Arc AB = Radius * Angle ( In Radians )

AB = 9 x 2.164

=> 19.47m

Help me pls this is hard

Answers

Answer:

it is C I did the before it is really easy

Thare are 2 yellow 3 pink and 5 blue. What is the possibility of drawing two pink marbles of the first one is NOT placed back in to the bag before the second draw​

Answers

Answer:

Hint

Step-by-step explanation:

Can someone help me

Answers

Answer:

B = 129

Step-by-step explanation:

Opposite angles of a parallelogram are equal (or congruent)

A and C are both 51.

All angles in a parallelogram equal 360

Take both the known angles and substract from 360, than divide by 2.

B = (360 - 51 - 51)/2

B = 129

Help me PLEASEEEEEEEEEEEEE

Answers

Answer:

Step-by-step explanation:

A, D and F

What is the area of the figure below?

Answers

The answer would be 61 in^2

The local service center advertises that it charges a flat fee of $50 plus $8 per mile to tow a vehicle. Write an equation that represents the total cost (C) of a service for m miles of towing. Express your mathematical thinking.

Answers

jshsjsjnhashsjsuhfjd
An equation that could help is c=50+8m

Elton has three quarters in his pocket and some nickels. The total value of the coins is $1.05. Which equation could be used to determine the total number of nickels (n) in his pocket.

A. 3 + 0.05n = 1.05
B. 0.75 + 0.05n = 1.05
C. 3 + n = 1.05
D. 3n + 5 = 1.05

Answers

Answer:

C

plz mark brainliest

Help please!!!!!!!!!

Answers

Answer:

1,5

Step-by-step explanation:

there is an obvious pattern in the coordinate plane and the coordinates (5, 1) completes that pattern

hope that helped :)

Answer: (4,2), (1,2), (4,5]

Step-by-step explanation: hope this helps

Please help. Math is not for me especially not trigonometry

Answers

Use SOH
To find sin=O/H or 5/25
Then use the inverse sin^-1(5/25)
And find the angle

A baker makes 12 dozen
cookies, 18 dozen muffins, and
22 dozen scones every day.
How many baked goods does
she make in all every day?

Answers

Answer:

624

Step-by-step explanation:

12+18+22=52 52×12=624

Answer:

624

Step-by-step explanation:

12x12= 144        cookies

18x12= 216        muffins

22x12= 264       scones

144+216+264= 624


Please answer all correct for brainlest

Answers

Answer:

2. 2(7y-2)

3. -5-2x

4. 9+y

5. 5x-7

6. 3m+2

7. 8-9m

Step-by-step explanation:

collect like terms

PLS ANSWER RNN
What is the value
of x?

A. 5
B. 8
C. 11
D. 12

Answers

Answer:

A.5 i think it is!

byee have a nice day

Which of the following quadratic regression equations best fits the data
shown below?

O A. y = 4.67x2 + 4.10x + 2.87
OB. y= 2.87x2 + 2.70x + 4.07
O c. y= 2.09x2 + 1.30x + 4.61
O D. y= 3.11x2 + 1.20x+ 3.64

Answers

Maybe A not to sure hope this helps :)
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