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
Zinaida [17]
3 years ago
11

A group of pennies made in 2018 are weighed. The mean is approximately 2.5 grams

Mathematics
1 answer:
Hatshy [7]3 years ago
4 0

Answer:

*  The mean (a measure of central tendency) weight value is the average of the weights of all pennies in the study.

* The standard deviation (a measure of variability or dispersion) describes the lowest and highest any individual penny weight can be. Subtracting 0.02g from the mean, you get the lowest penny weight in the group.

Step-by-step explanation:

Recall that a penny is a money unit. It is created/produced, just like any other commodity. As a matter of fact, almost all types of money or currency are manufactured; with different materials ranging from paper to solid metals.

A group of pennies made in a certain year are weighed. The variable of interest here is weight of a penny.

The mean weight of all selected pennies is approximately 2.5grams.

The standard deviation of this mean value is 0.02grams.

In this context,

*  The mean (a measure of central tendency) weight value is the average of the weights of all pennies in the study.

* The standard deviation (a measure of variability or dispersion) describes the lowest and highest any individual penny weight can be. Subtracting 0.02g from the mean, you get the lowest penny weight in the group.

Likewise, adding 0.02g to the mean, you get the highest penny weight in the group.

Hence, the weight of each penny in this study, falls within

[2.48grams - 2.52grams]

You might be interested in
Which of the following correctly shows the quadratic formula for the given equation? 3x2 - 6x + 8 = 0
frez [133]
The quadratic formula is expressed as:

x = (-b +/- √(b^2 - 4ac) ) / 2a

where a, b and c are the coefficients of the quadratic equation with the form ax^2 + bx + c=0

Therefore, the quadratic equation would be:

a = 3
b = -6
c = 8

x = (-(-6) +/- √((-6)^2 - 4(3)(8) ) / 2(3)

Hope this helps.

7 0
3 years ago
A group of students were doing a science experiment in which they measured wind speed and temperature. The first day the wind sp
Mama L [17]
So the difference of speed will be 25-17 = 8 mph  the last one choice 

hope helped 
8 0
3 years ago
I need to simplify this expression : 6• (10•k)
Temka [501]

Answer:

6 x 10= 60

60/2=30

Answer is<u> 30</u> i think

Step-by-step explanation:

7 0
3 years ago
(-23, – 8) and (722 -8)
Andre45 [30]

-51 and 714

Step-by-step explanation:

-23-38=-51

722-8=714

7 0
3 years ago
Simplify (x + 2) squared over x + 2
djyliett [7]
(x+2)^2 over x+2
x^2+4 \x+2
x+2









3 0
3 years ago
Read 2 more answers
Other questions:
  • What is .64 divided by 3.456
    11·1 answer
  • Two forces act on an object. The first Force has a magnitude of 400 Newtons and acts at an angle of 30 degrees as measured from
    7·1 answer
  • Explain algebra<br><br>plz help
    14·1 answer
  • HELP QUICK PLZ I AM STUCK!!!!!!!
    12·1 answer
  • HELP ME PLEASE I WILL MARK YOU AS A BRAINLIEST!!!
    13·1 answer
  • Can someone pleaseeee help if you’re correct I’ll give u brainlist
    8·1 answer
  • Please help mee (don't send a link)
    8·2 answers
  • Is a credit of $55 negative or positive ?
    8·2 answers
  • (3/4)to the power of 3 in form of p/q
    12·1 answer
  • I dont know this question i will give you brainly
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!