a variable x is normally distributed with mean 21 and standard deviation 5. round your answers to the nearest hundredth as needed. a) determine the z -score for x

Answers

Answer 1

The formula for determining a z-score is z = (x-μ)/σ, where x is the raw score, z is the population mean, and z is the population standard deviation.

How to calculate a raw score when a z-score ?The raw score less the population mean, divided by the population standard deviation, is what the calculation reveals to be the z-score.We occasionally need to locate the raw score that corresponds to a z-score that we are aware of. A sample's z-score can be converted into a raw score using the following formula:

X=(z)(SD) + mean

The formula demonstrates how to multiply the z-score by the standard deviation, then add that result to the mean.Verify if your response is logical: The raw score that corresponds to a negative z-score should be lower than the mean, and the raw score that corresponds to a positive z-score must be higher than the mean.

To Learn more About z-score refer to:

https://brainly.com/question/28138150

#SPJ1


Related Questions

0.25% of 42 is what number

Answers

Answer:

0.105

Step-by-step explanation:

0.25/100 x 42 = 0.105

Answer: The answer is 0.105

Charlie is saving for a new computer desk. The table costs $70. So far, she has already saved $35/ Write an equation to show how much more does she need to save to buy the desk. *Let x represent the amount of money that needs to be saved

Answers

Answer:

x + 35 = 70

   -35    -35

–––––––––––

     x = 35

Step-by-step explanation:

35 + 35 = 70

:))

Help please :)) Ignore the writing i was attempting to figure it out

Answers

Answer:

The answer is C. I hope this helps and is the paper red? That's cool. Anyways have a nice day!!

Step-by-step explanation:

Answer:

I think its is D but i'm not 100% sure

The senior classes at Portland High School and Biddeford High School planned separate
trips to New York City. The senior class at Portland High School rented and filled 1 van
and 6 buses with 372 students. Biddeford High School rented and filled 4 vans and 12
buses with 780 students. Each van and each bus carried the same number of students. How
many students can a van carry? How many students can a bus carry?

Answers

I believe it would be 47

A house that costs $125,400 appreciates at a rate of 3% each year. What is the value of the
home after 3 years.
a.$137027.97
b.$275503.80
c.$114449.19
d.$3385800

Answers

Answer:

The value after three years is $137,027.97

Step-by-step explanation:

Here, we want to get the value of the home after 3 years

Generally, we have the exponential formula as follows;

y = P(1 + r)^t

where P is the original cost which is $124,400

r is the rate of increase which is 3% = 3/100 = 0.03

t is the time which is 3 years

Substituting these values;

y = 125400(1 + 0.03)^3 = $137,027.97

How do I find tips and discounts?​

Answers

Well, there are many apps and websites such as Honey to help you. You can also find then on newspapers and magazines where you can find coupons for discounts. And you can find tips in places like BRAINLY like I am doing now.

Help please and thank you

Answers

Answer:

1000

Step-by-step explanation:

well just round it to the nearest thousand

45 is the answer :)
hope this helps

i need help btw i am in middle school

Answers

Answer: J

Step-by-step explanation: It is very cool you are in middle schopol

The fractuon 3/5 is found between which pair of fractions on a number line?

Answers

Answer: It's kinda simple, 2/5 and 4/5

Just add 1 to the numerator of the original fraction, and there's where you get 4/5. Then subtract 1 from the original fraction, and that's where you get 2/5!

please help this is confusing me:(

Answers

Answer :
-8 miles per min
He travels 3.25min

-8 x 3.5= -26

He traveled 26 miles in 3.25

I hope this helped

Write the first six terms of f(n) = 4n-1

Answers

6
10
14
18 are the first six terms

Multiple Response. Select all the equations that have exactly one solution.

A. 3x + 1 = -3x + 7
B. 3x + 1 = x + 1
C. 3x + 1 = 3x + 7
D. 3x + 1 = 1/2 (1x + 1)
E. 3x + 3 = 3(x+1)

Answers

Answer:

A, B, D

Step-by-step explanation:

Jamie is twice as old as Natalie now. Give years ago the sum of their ages was 26. How old is each person now?

Answers

answer:

8. 67 and 17. 36

step-by-step explanation:

hi there!

to find out the age of both girls, i believe that we should divide the number 26 by 3 because jamie is twice as old as natalie meaning ( natalie ) is younger

26/3

= 8. 67

meaning 8.67 is how old natalie is/was

add 8.68 to itself once and you will get jamie's age!

8. 67 + 8. 67

= 17. 34

meaning 17. 34 is how old jamie is/was

sorry if i misread the question or made it a little confusing! but i do hope that this ends up helping you! :)

please help 15pts and will give brainlist!!

Answers

Answer:

1st ans

(x+15)=135(alternate angle)

x=135-15

x=120

2nd ans

(8x-4)=92(corresponding angle)

8x=92+4

x=96/8

x=12

3rd ans

(x+1)=51(vertically opposite angle)

x=51-1

x=50

A line has a slope of 0 and passes through the point (-4, 3). What is its equation in slope-intercept form.​

Answers

Answer:

y = 3

Step-by-step explanation:

We already know the slope, all we need to do is find the y-intercept.

You have to plug the coordinates into the equation, y = 0x + b

y = 0x + b

3 = 0(-4) +b

3 = 0 + b

3 = b

The equation is y = 3

help asap! 30 pts and brainliest!
given the data represented in the bar graph which month represents 10% of the birthdays for the students surveyed?
a. july
b. june
c. may
d. september
thank you!

Answers

Answer:

July

Step-by-step explanation:

Took terst

Can someone help me with this. Will Mark brainliest.

Answers

False hope that helps

Answer:

False

Step-by-step explanation:

because all four sides of a rectangle don't have to be equal. However, the sets of rectangles and rhombuses do intersect, and their intersection is the set of squares—all squares are both a rectangle and a rhombus.

:))

16/g,when g=4

Please answer

Answers

Answer:

4

Step-by-step explanation:

[tex]\sqrt[3]{11}[/tex]

Answers

Answer:

2.22

Step-by-step explanation:

[tex]\sqrt[3]{11} =2.223980091[/tex]

Rounded to hundredths: 2.22

STION 4
Write the following ratio in its simplest form:
64:18​

Answers

The ratio 64:18 can be expressed in its simplest form as 32:9

Data;

6418

What is Ratio?

Ratio of a value is a relationship between two or more values indicating the number of times a value is present in the other.

To find the smallest ratio between 64:18, all we have to do is simply divide them to the smallest possible value

[tex]64:18=\frac{64}{18} =\frac{32}{9}[/tex]

The ratio 64:18 can be expressed in its simplest form as 32:9

Learn more on ratio here;

https://brainly.com/question/7620723

(Write the equation) Thank you if you answer it <3

Answers

Answer:

10 - 2 = (x + 6)

Explanation:

The Sum Of x And 6 Is Two Less Than Ten.

The Sum Of x And 6: x + 6

Two Less Than Ten: 10 - 2

Put The Two Terms Together10 - 2 = (x + 6)
answer is: 10-2=(x+6)

explain how finding the square root of a number is different from finding the cube root

Answers

U could searc9 it up and it will help u

I need help FAST pleaseeeee

Answers

Answer:

20 i think

Step-by-step explanation:

If you roll a d6, what is the chance of rolling a 4?

Answers

Answer:

1/6

Step-by-step explanation:

They are asking for 1 section out of 6 so it is 1/6.

Can I please have Brainliest?


A construction crew is made up of 18 men; the rest are women. If 75% of
the crew are men, how many people are in the crew altogether?
24
22
28
20

Answers

Answer:

24

Step-by-step explanation:

I just took this test and got an A

Have a great day!

Answer:

22

Step-by-step explanation:

22 because I did it already

Without doing any calculations, compare Expression A to Expression B.

A (34 + 25) ÷ 14

B 34 + 25

Answers

Answer:

A < B

Step-by-step explanation:

well lets see, they are both adding 34 and 25

But in a, they are dividing, and because dividing usually makes the number smaller, B is larger

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

Expression A is less than expression B

Step-by-step explanation: Connexus  

Someone who can help me?​

Answers

Answer:

4 days

Step-by-step explanation:

$0.09 × 100 = 9

$62.47 × 4 = 249.88

249.88 + 9 = 258.88

Do anyone know this problem?

Answers

Answer:

me kown it

Step-by-step explanation:

HELP!! 4 questions !!! easy points!! 25 points!! please answer quick!

Answers

Step-by-step explanation:

(i) From the graph value of x varies -3 to 3 i.e.

[tex]-3\leq x\leq 3[/tex]

and domain in the input values which function can take

So, option (d) is correct.

(ii) option (d) is correct as it represent the function [tex]y=x[/tex]. While all the other function does not satisfy the given conditions.

(iii) [tex](-14,-15), (-9,-10)[/tex] are the parts of solution pair.

(iv) Option (c) and (d) represents the function as each element of the first set has a unique image in the second set.

jack typed 45 words in 1 minute. how many minutes will it take jack to type 990 words

Answers

Answer:

22 minutes

Step-by-step explanation:

990/45=22

Answer:

it will take 22 minutes

i just multiplied 45 and 22 and got 990

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