1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Contact [7]
3 years ago
8

A person's metabolic rate is the rate at which the body consumes energy. Metabolic rate is important in studies of weight gain,

dieting, and exercise. Here are the metabolic rates of 7 men who took part in a study of dieting. (The units are calories per 24 hours. These are the same calories used to describe the energy content of foods.) 1720 1687 1367 1614 1460 1867 1436 Calculate the mean and standard deviation of the metabolic rates, showing each step in detail.
Mathematics
1 answer:
cupoosta [38]3 years ago
3 0

Let m be mean

Mean= sum/ n

Mean= (1720+1687+1367+1614+1460+1867+1436) / 7

m= 11151 / 7

M= 1593

Mean= 1593

Standard deviation

|x-m|^2

For 1st: |1720-1593|^2=8836

For 2nd: |1687-1593|^2=10201

For 3rd: |1367-1593|^2=51076

For 4th: |1614-1593|^2=441

For 5th: |1460-1593|^2=1689

For 6th: |1867-1593|^2=75076

For 7th: |1436-1593|^2=24649

Summation of |x-m|^2 = 171968

Standard deviation sample formula is:

S.D = sqrt((summation of |x-m|^2) / n-1)

S.D=sqrt(171968/6)

S.D=sqrt(28661.33)

S.D=169.30

Standard deviation is 169.30

You might be interested in
Please help!!! Write 4x^2=12 in standard form?
Andru [333]

Answer:

x =  \sqrt{3}

Step-by-step explanation:

4x^2=12

x^2=12/4

x= root 3

3 0
2 years ago
What is the net-price rate when a designer swimsuit, originally priced at $85 is discounted 25/60?
Gre4nikov [31]
Designer's swimsuit is originally priced at 85 dollars.
NOw, it applied a discount which is 25/60. First, let's find out how much the discount rate.
=> 25 / 60 = 0.42 * 100 = 42% is the discount.
=> 85 dollars * 0.42 = 35.7 is the discount.
=> 85 dollars - <span>35.7 dollars = 49.3 dollars is now the price.</span>
4 0
3 years ago
michael basketball team practice fir 2 hours and 40 minutes yesturday and 3 hours 15 minutes today.how much longer did team prac
Serjik [45]

Answer:

35 minutes

Step-by-step explanation:

2 hrs 4 min= 160 min

3 hrs 15 min= 195 min

195-160=35

6 0
3 years ago
A science class is tracking the progress of plant growth. The class starts the experiment with a plant five centimeters high. Th
NISA [10]

Answer:

In this equation, the y-intercept (+ 5) represents the original height of the plant. 2x represents the amount of growth multiplied by the number of days, x.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
The basic unit in which data are stored in an accounting system is called an __________. These storage units should be so constr
mash [69]

Answer:

an accounts; credit or debit.

Step-by-step explanation:

Remember, accounting involves activities done to keep financial records. Interestingly, a similar term is used to refer to the basic unit in which data are stored in an accounting system called accounts.

Also, we need to bear in mind that this financial records written as storage units would include incoming or outgoing money measurements often called debit or credit transactions in the items for which they are established.

6 0
3 years ago
Other questions:
  • Problem 3.2.14a<br><br> Show that 2^2x+1 +1 is divisible by 3.
    12·1 answer
  • List the sides of triangle ABC in order from least to greatest
    6·2 answers
  • OFFERING A LOT OF POINTS. please write 2 or
    8·1 answer
  • Use special right triangles to solve for the exact value of x. 4 16 9
    6·1 answer
  • Please help! If you do you will get 'Brainliest'
    6·1 answer
  • 9. A plumber charges $25 to come to your house. He also charges $60 for each hour that he works. The
    6·1 answer
  • 10
    10·1 answer
  • A school district wants to find out why dropout rates were lower at some schools rather than others. What statistical approach w
    5·1 answer
  • ¿Cuántos de éstos?
    12·1 answer
  • Nestor works at a garden center where he pots plants. It takes him 2 1/2 hours to pot 15 plants.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!