What are the values of the mean and standard deviation after converting?

Answers

Answer 1
Example:Pulse rates of women are normally distributed with a mean of 77.5beats per minute and a standard deviation of 11.6 beats per minute.a) What are the values of the mean and standard deviation afterconverting all pulse rates of women to z-scores usingz=(x−μ)/σ?µ = 0;σ= 1b) The original pulse rates are measured with units of “beats perminute.” What are the units of the corresponding z-scores?The z-scores are numbers without units of measurement.

Related Questions

Mary made 1/8 of a batch of cookies in 1/10 pf an hour. How much time will she need to make 1 full batch of cookies?

Answers

Mary will need 48 minutes to make a full batch of cookies, as determined by setting up a proportion and then converting hours to minutes.

Mary made 1/8 of a batch of cookies in 1/10 of an hour. To find out how long it will take to make a full batch, we set up a proportion based on the information given. Since 1/8 of a batch takes 1/10 of an hour, we want to find out the time for 8/8 (a full batch), which is equivalent to 1.

Setting up the proportion, we can say that 1/8 of a batch is to 1/10 of an hour as 1 full batch (8/8) is to X hours:

1/8 batch : 1/10 hour = 1 batch : X hours

To solve for X, we multiply 1/10 by 8 because there are 8 parts of 1/8 in a full batch:

1/10 hour * 8 = 8/10 hours

Reducing the fraction 8/10, we get:

8/10 = 4/5 hours

To convert 4/5 of an hour to minutes, we multiply by 60:

4/5 hour * 60 minutes/hour = 48 minutes

Therefore, Mary will need 48 minutes to make 1 full batch of cookies.

complete the steps to demonstrate why you multiply by the reciprocal when dividing fractions. Find 1/4 divided by 3/8

Answers

Multiplying is the opposite of dividing, so that's why you multiply it by the reciprocal.
1. 1/4 ÷ 3/8 is equivalent to 1/4 × 8/3
2. 1/3 × 8/3 = ?
3. 1 × 8 = 8
4. 3 × 3 = 9

compute the following 8c2•5c2

Answers

The question that we are given to compute is 8c² × 5c². Since this is multiplication, we can straight up multiply 8 and 5 to get 40. Now, we multiply c² by itself to get c⁴. Therefore, when we combine our products together, we get 40c, which is your answer. Hope this helped!

The computation of 8C2•5C2 results in 280

The student asked: 'compute the following 8c2•5c2'.

We can solve this using the combinations formula, where nCr = n! / [r!(n-r)!].
 Compute 8C2.-
 8C2
 = 8! / [2!(8-2)!]
 = (8*7) / (2*1) = 28.
 Compute 5C2.
 5C2
= 5! / [2!(5-2)!]
= (5*4) / (2*1) = 10.
  Multiply the results.
  28 * 10 = 280.

Hence, the value of 8C2 • 5C2 is 280.

Factor −1/2−1/2 out of −1/2x+6.

Answers

Final answer:

To factor out -1/2 - 1/2 from -1/2x + 6, multiply -1/2 by the expression inside the parentheses and distribute. Then, simplify and combine like terms to get the factored form: -3/2x - 6.

Explanation:

To factor out -1/2 - 1/2 from -1/2x + 6, you can rewrite the expression as (-1/2) * (x + 2(6)). Then, distribute to get (-1/2)x - (1/2)(2) * (x + 2(6)). Simplify further to get (-1/2)x - x - 6. Finally, combine like terms to get (-1/2 - 1)(x) - 6. Therefore, the factored form of the expression is -3/2x - 6.

Find a line perpendicular to – 5 x – 4 y = 19 that passes through ( – 5 , 11 )

Answers

Solve  – 5 x – 4 y = 19   for y to obtain the slope:  -5x - 19 = 4y, and so
the slope is (-5/4).

A line perpendicular to – 5 x – 4 y = 19  must have a slope which is the negative reciprocal of this (-5/4).  That would be (+4/5).

Using the point-slope form of the eqn of a str line:

y-11 = (4/5)(x-[-5]), or   (4/5)(x+5).  This could, of course, be written in other (but equivalent) forms.

Write the decimal 0.326 in to other forms

Answers

0.326

to get percent, move the decimal point over two spaces to the right:
32.6%

to get fraction, put it over 100 by moving the decimal spaces two to the right:
32.6/100

To get a fraction that is not include a decimal, write it over 1000 (at this case:
326/1000

hope this helps

What is the slope of the x axis

Answers

Answer: Zero slope

Step-by-step explanation: Since the x-axis is horizontal, it has a slope of 0. In fact, for any horizontal or flat line, the slope is always 0.

The variable that's used to represent slope is m. So in this problem, we would say that m = 0.

Which of these equations have no solution? Check all that apply.  A    2(x + 2) + 2 = 2(x + 3) + 1        B   2x + 3(x + 5) = 5(x – 3)         C  4(x + 3) = x + 12      D    4 – (2x + 5) = (–4x – 2)         E   5(x + 4) – x = 4(x + 5) – 1

Answers

Answer: A,B,E

Step-by-step explanation:

I just got done with the assignment and that was the answer

G how many distinct ordered arrangements of the letters of the word boogaboo can be made?

Answers

In the word "boogaboo", there are eight (8) letters while there are only four distinct letters. The number of distinct ordered arrangements can be calculated through the equation,

            n = 8!/(2!)(4!)

where there are 2 letter b's and 4 letter o's. The answer to this item is 840.

Answer: 840

A delivery driver earns a fixed amount for each delivery she makes, and yesterday her average hourly wage was $16.50 an hour. If she worked 6 hours yesterday and made 11 deliveries, how much does she earn for each delivery made? A. $9.90 B. $5.50 C. $5.00 D. $9.00

Answers

The answer is D. $9.00
$16.50 x 6 = $99
so 99 divided by 11 is 9
Answer:

Option D - The driver earned $9 for each delivery.

Step-by-step explanation:

Given scenario is :

Hourly wage for the driver = $16.50

Total number of hours worked in a day = 6

So, total earning for the day = [tex]16.50\times6=99[/tex] dollars

Now, she made 11 deliveries in $99

So, each delivery cost = [tex]\frac{99}{11}=9[/tex]

Hence, the driver earned $9 for each delivery.

On a quiz worth 5 points, three students earned a 5, five students earned a 4, four students earned a 3,six students earned a 2 , nine earned a 1 and eight students earned a zero . What is the class average on this quiz

Answers

If you add them all together and divide the answer you get by 5 you should get 7

what is the product of g and 7???

Answers

7 •g = 7g
Product always refers to a multiplication problem. So the product of g and 7 is 7g.

The product of the variables g and 7 is written as 7g.

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that the numbers are g and 7. The product will be written as,

Product = 7 x g

Product = 7g

Here, g is the variable and for different values of 'g', the formula will give the different values of the product.

To know more about an expression follow

https://brainly.com/question/25301924

#SPJ2

Solve the equation for x. (Round your answer to three decimal places.) arctan(4x − 4) = -1

Answers

take the inverse arctan on both sides:

4x-4 = tan(-1)

4x-4 = -0.01745

4x = 3.98255

x = 3.9255 / 4

x = 0.996


the mean age of a dance troupe is 14.2 years. A 7-year-old sibling is invited to join the troupe. How does the sibling’s age affect the mean?

A. The new mean age will be 10.6 years.
B. The new mean age will be greater than 14.2 years.
C. The new mean age will be less than 14.2 years.
D. The new mean age will still be 14.2 years.

Answers

The correct answer is c.  There is no possible way to know how much the mean age decreases, but we know it definitely will (averages decrease as values less than the average are added to the data.) 

The new mean age will be less than 14.2 years.

What is mean?

There are several kinds of mean in mathematics, especially in statistics. For a data set, the arithmetic mean, also known as arithmetic average, is a measure of central tendency of a finite set of numbers: specifically, the sum of the values divided by the number of values.

According to questions, the mean age of a dance troupe is 14.2 years.

A 7-year-old sibling is invited to join the troupe.

We have to find how does the sibling’s age affect the mean.

There is no possible way to know how much the mean age decreases.

But the new mean age will decrease definitely.

Hence we can conclude that Option C is correct answer.

Learn more about mean here:

https://brainly.com/question/1906955?referrer=searchResults

#SPJ2

The product of 32 and an unknown number subtracted from 435 is 179 what is the value of the unknown number

Answers

Hello from MrBillDoesMath!

Answer:   Case 1: approximately   429.4, Case 2: 8

Discussion:

Let the unknown be "x". The problem statement could mean either

32 * (435 -x)  = 179     (#1)

or

435 - 32*x = 179             (#2)

It's unclear which one is wanted so we solve both of them.

----------------------------------------------#1

But for case #1


32 * (435 -x)  = 179  

32 * 435 - 32x = 179   or

13920 - 32x = 179

Add 32x to both sides

13920 = 179 + 32x

Subtract 179 from both sides:

13920 - 179 = 32x

Divide both side by x to get

x = (13920 -179)/32 =  13741/32 which is approximately   429.4


For case #2

----------------------------------------------#2

435 - 32x = 179.  Add 32 x to each side

435 -32x + 32x = 179 + 32x. Subtract 170 from each side

435 -179 = 32x or

32x = 256   or x = 8


Regards, MrB

Other Questions
What is the perimeter of trapezoid JKLM? + units2 + + units9 + units9 + + unitsanswer is D Is the phenomenon in which people tend to eat more when offered bigger portions? What is the slope of the x axis What happens to hurricanes as they go over land? What happens to your heart when it beats over 200 times per minute? THIS IS MY LAST ONE BROS.Mrs. Lamb is going to make a 3 question true false test. She wants to see how many different answer keys would be possible. What could she do to simulate this quiz? What would the sample space be? insulin is a hormone produced to signal cells to uptake and use glucose for cellular repiration. would the gene for insulin be turned on or off after eating birthday cake? explain Mitotic cell division is initiated in the ? HELPPPPPPPPPPP PLEASEEEEEEEEEEE???!!!what three emotions that advertisers provoke in viewers and an example of what each ad might feature or the association Barb and frank recently adopted twin girls. the four of them live together in the suburbs. this constitutes what sociologists would call a(n) extended family. household. social group. family. What does the word mimetic tell us about the difference between novels and most of the literature of the 1800's A 2kg particle moving along the x-axis experiences the net force shown at right. The particles velocity is 3.0m/s at x = 0m.A) At what position is the particle moving the fastest?B) What is the particles velocity at x=8m? Show your work Jane works in the sales department of a service company. She has impressive interpersonal skills and always turns up for work on time. Though she gets along well with her coworkers, she has a habit of constantly interrupting them during a conversation. Which core business etiquette, is missing in Jane? A projectile is thrown upward so that its distance above the ground after t seconds is h = - 16t2+ 440t. After how many seconds does it reach its maximum height? what is the product of g and 7??? What is the pronoun case of the bolded word? ( They ) congratulated us on our achievement. The cost y (in dollars) to rent a camping tent is proportional to the number x of days that the tent is rented. It costs $56 to rent a tent for 7 days. Write an equation that represents the cost to rent a camping tent for x days. How did patriots plan to warn others of the british movements were by land or sea? Which do you think has had a greater effect on Canadas settlement patterns: its climate zonesor its natural resources? Explain your answer. She has combed and brushed her night-dark hair, And bathed rose petal sweet, And drawn white gloves on her small brown hands, And white shoes on her feet. What is ironic about the sensory imagery in the stanza? The little girl is preparing her appearance carefully for church, but the church will be bombed. The little girl is going, against her mothers wishes, to participate in a Freedom March on the streets of Birmingham. The little girl has to decide between going to church or to school. The mother asked the little girl to hurry, but the little girl is taking her time getting ready. Steam Workshop Downloader