Samantha and Luis are attempting to dentermine the average number of library books that seventh-grade students check out at one time. Samantha surveys every other seventh grade students
Answers
Answer: Your question is incomplete
But if the attached image is the complete question “whose sample is the most random”, then your answer is:
Luis’ sample.
Step-by-step explanation:
A random sample is one where each member is selected at random.
It is the kind of sampling where each member has an equal chance of being selected.
Samantha and Luis are trying to determine the number of library books that seventh graders check out. Their focus is;
1.) Seventh graders and
2.) Library books
Samantha surveys seventh graders leaving the library while Luis surveys seventh graders at random in the school cafeteria.
Samantha’s survey is more focused because each member of her sample was leaving the library meaning that they had handled books.
But Luis’ sample is more random because he takes his survey from all seventh graders (seventh graders in the cafeteria). With his random sampling, there is a high probability that each member never handled library books.
Related Questions
What is the area of the figure?
A figure consists of a right triangle and 2 rectangles. The right triangle has legs 3 and 4 centimeters long and hypotemuse 5 centimeters long. One rectangle is 3 centimeters long and 4 centimeters wide. The other rectangle is 1.5 centimeters long and 4 centimeters wide.
A. 12 cm2
B. 24 cm2
C. 28 cm2
D. 42 cm2
Answers
Answer:it’s c
Step-by-step explanation:
He determined that the value of 6 in 76,345 is 100 times the value of 6 in 34,675. Part A: Is Lucas right? Part B: Explain why Lucas is right or wrong.
Answers
Answer:
Lucas is not right.
Step-by-step explanation:
To find: whether the value of 6 in 76,345 is equal to 100 times the value of 6 in 34,675
Solution:
Value of 6 in 76,345 = 6,000
Value of 6 in 34,675 = 600
Now 6000 = 10 × 600
So,
Value of 6 in 76,345 is equal to 10 times the value of 6 in 34,675.
Therefore, Lucas is not right.
Answer:
Part A: Lucas is wrong.
Part B: The value of 6 in 76,345 is 6,000 and the value of 6 in 34,675 is 600.
Part C: The value of 6 in 76,345 is equal to 10 times the value of 6 in 34,675.
10 × 600 = 6,000
Step-by-step explanation:
I put this on each of my answers and I got all three parts correct. Hope this helps you!!!!
Please mark my answer as the Brainiest!!!!!
Thank You!!!!!!!!
is the value of
is 14?
Answers
Answer: So in the number 14, there is one ten and four ones—10 + 4 = 14. If we change that 1 to a 2, we get 24, or twenty-four. The number 2 in the tens place tells us there are two tens. Each place value is 10 times larger than the place value to the right of it.
Step-by-step explanation:
7(x+5) plese No links
Answers
1. Distribute
2. You get 7x+35.
Answer:
[tex]7x+ 35[/tex]
Step-by-step explanation:
Multiply every thing in the brackets by 7:
[tex]7*x=7x[/tex]
[tex]7*5 = 35[/tex]
2 x 5/6
Help me please
Answers
Answer: 1.66666666667
I hope this helps!
(I will give brainiest) Chelsea has just started her own flower business appropriately named Flowers by C.
She knows that she needs to order carnations and roses for her grand opening in order to make
bouquets and vases to sell. She can order a maximum of 300 carnations and 250 roses. The following inequalities represent the total number of bouquets and vases she can make given the
orders she places. Let x represent the number of bouquets and y represent the number of vases.
If she wants to make 18 vases, what is the maximum number of bouquets she can make?
Answers
Answer:
x < -3/5y+ 30
Step-by-step explanation:
x < -3/5y+ 30 for the first one
addboth sides by 6y then divideboth sides by 10
PLS HELP I WILL MARK THE BRAINLIEST.
Answers
Answer: HELP ASA! I NEED HELP ON MY TWO LAST QUESTIONS
Step-by-step explanation:
Russel has a collection of 1,200 pennies. Of these pennies, 25% are dated before 1980, 35% are dated from 1980 to 2000, and the rest are dated after 2000. How many pennies in Russell's collection are dated after 2000?
A. 480
B. 720
C. 40
D. 60
Answers
Answer:
D. 60
Step-by-step explanation:
Add the percentages of 25% and 35% and you'll get 60.
Answer:
A 480
Step-by-step explanation:
in 2000=480 i don't know how to farther explain it to you.hope that helps.
100 POINTS!!! The table shows the values of a function f (x), What is the average rate of change of f (x) over the interval from x = 5 to x = 9? Show your work.
Answers
Answer:
1. (f(x)-f(a))/(x-a) **A(x)=(f(x)-f(a))/(x-a) This average rate of shift attribute is designated by the letter A. *f(x) - f(a) represents the difference in the function f as the input transitions from a to x. x - a represents the change in the input of the function f.
f(5)=-2 f(9)=14 (f(5)-f(9))/(5-9)=(-2-14)/-4=4 (f(5)-f(9))/(5-9)=(-2-14)/-4=4
Over the range of x = 5 to x = 9, the average rate of change is 4.
2. g(x)=2x2+13x+1, f(x)=4x2+6x
(f/g)(x)=(4x2+6x)/(2x2+13x+1) (f/g)(x)=(4x2+6x) (f/g)(x)=(4x2+6x)
f(x): 88/85,155/116,180/151,238/190,304/233,378/280 f(x): 88/85,155/116,180/151,238/190,304/233,378/280 f(x): 88/85,155/116,180/151,238/190,304/233,378/280 f(x): 88/85
3. f(x)=x2-6x+8, g(x)=x-2, g(x)=x-2, f(x)=g (x)
x2-6x+8=x-2, x2-6x-x+8+2=0, x2-7x+10=0, x2-6x-x+8+2=0
x1,2=(7+(72-4*10))/2=(7+3)/2 x1=5, x2=2 x1=5 x2=2
Step-by-step explanation:
cuantos números primos hay entre 30 y 40?
Answers
Answer:
Dos numeros primos
Step-by-step explanation:
31 y 37 no son productos de dos números naturales más pequeños. Los otros numeros entre 30 y 40 son compuestos.
Country bank pays a simple interest rate of 4% per year. A student plans to invest 5000. How much money will the student have at the end of 6 years
Answers
Answer:
$6200
Step-by-step explanation:
Given data
Rate= 4%
Principal=$5000
Time = 6 years
The simple interest formula is
A=P(1+rt)
substitute
A=5000(1+0.04*6)
A= 5000(1+0.24)
A=5000*1.24
A=$6200
Solve for x
2(x+5)-7=3(x-2)
Answers
x=9
I'm sorry if I'm wrong
Answer:
x=9
Step-by-step explanation:
2(x+5)-7=3(x-2)
distribute the 2 and 3 which gives you
2x+10-7=3x-6
combine like terms
2x+3=3x-6
move the 2x to the other side by subtracting which gives you
3=x-6
add 6 to the other side which gives you
9=x
Round your answer to the tenths place if necessary
Help me please! :(
Answers
Answer:
∠ B = 80.5°
Step-by-step explanation:
Since AB = AC then the triangle is isosceles with base angles congruent, so
∠ B = ∠ C , then
∠ B = [tex]\frac{180-19}{2}[/tex] = [tex]\frac{161}{2}[/tex] = 80.5°
If a parabola opens downward, the highest point on the graph is called the ____ of the parabola.
Answers
Answer:
vertex
Step-by-step explanation:
Find the median and Interquartile Range:
33, 42, 31, 27, 47, 23, 40, 45, and 43
Answers
Median: 40
Interquartile Range: 15
Median Definition: the median value of a range of values.
Interquartile Range Definition: the range of values of a frequency distribution between the first and third quartiles.
Tiara attended 12 piano classes in four weeks. If she attended the same number of classes each week, which equation can be used to find the number of classes she attended every week?
A.4 + c = 12
B.4c = 12
C.12c = 4
D.12 - c = 4
Answers
Answer:
C
Step-by-step explanation:
Because i'm smart and did the math.
PLEASE HELP I WILL GIVE BRAINLIEST ACTUALLY PLEASE HELP
Answers
Answer:
$60
Step-by-step explanation:
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
Answers
9514 1404 393
Answer:
B. rectangle, not a square
Step-by-step explanation:
When you plot the points, you see the lines between them have a rise/run of 3/2 or -2/3. The product of these numbers is -1, so the sides of the figure are perpendicular (not a rhombus, not a trapezoid). The figure is not square, so is ...
rectangle that is not a square
If z=2
3 (x-12) and x=39, then what is z?
Answers
Answer:
621
Step-by-step explanation:
23(39-12) > 23(27)
23(27)= 621
An equilateral triangle is
Always/sometimes/never
similar to a scalene triangle, because we can
sometimes/always/never
map one onto the other using only dilations and rigid
transformations?
Answers
Answer:
sometimes similar to a scelene triangle because we can never
4. Figure RST has been rotated 90 degrees clockwise to form figure OPQ.
Which of the following statements is true?
AD
O
T
is a
O meRem20
RS - PQ
O
STOP
m2S = m_P
Answers
Answer:
D
Step-by-step explanation:
i did this
The true statement is (d) m<S = m<P
How to determine the true statement?When a figure is rotated, the side lengths and the angle measures of the figure remain unchanged.
This means that:
The figure RST is congruent to the figure OPQ.
The choice of option that supports the above highlight is
m<S = m<P
Hence, the true statement is (d) m<S = m<P
Read more about rotation at:
https://brainly.com/question/4289712
help please, special right triangles, find the value of each variable
Answers
x= 10
Explanation:
write a linear equation using y=mx+b
Answers
A circular plate has a diameter of 9 inches. What is the area of the plate? Explain the steps you follow to get to your answer
Answers
Answer:
The area of the circular plate is: " 63.59 in² " .
______________________________________________________
Note:
______________________________________________
diameter, "d" = 9 in. (given).
radius, "r" = "d/ 2 " = "(9 inches) / 2 " = 4.5 in.
______________________________________________
Area of a circle, "A" :
A = * r² ;
in which: "A = Area of circle ("plate"); in units of "square inches"; or "in² " ;
" = 3.14 " {approximation we shall use} ;
"r = radius = 4.5 in." ;
________________________________________________________
Plug in our known values to solve for the area, "A" :
A = (3.14) * (4.5 in)² ;
A = (3.14) * (4.5)² * (in²) ;
A = (3.14) * (4.5) * (4.5) * (in²) ;
A = 63.585 in² ; round to: " 63.59 in² " .
_____________________________________________
Step-by-step explanation:
According to the line of best fit, if a batter struck out about 80 times, about how many hours did the batter practice?
Answers
Answer:
The batter practice for 4 hours
Step-by-step explanation:
Here, we want to use the line of best fit for an estimation
What we will do here is to identify the point 80 strikecuts on the y-axis
After getting this, we trace this right wards toward the line of best fit
Upon getting this, we trace down to the x-axis to get the number of hours indicative of the strikecuts
By doing this, we can see that the number of hours is simply 4 hours
HELPPPP!!!! PLZ HURRY AND SHOW UR WORK!!!!
TRAP ~ EZYD. Use the diagram on the right to find the scale factor of TRAP to EZYD.
The scale factor of TRAP to EZYD is __.
Answers
TR/EZ=9/12=3/4
Help me find the value of W
Answers
Answer:
what grade is this?
Step-by-step explanation:
x-3=4
x= ______
explain
Answers
Answer:
7
Step-by-step explanation:
In order to solve the value of x we need to Seperate it so that it can be alone on one side.
So:
X - 3 = 4
X = 4+3 (when characters go from one side of the "=" to the other, they change the sign that is before them (so if before the "=" it was "-" now it will be "+". Same goes for when we multiply or divide))
X=7
Answer:
X=7 because
-3=3=0,
and 4+3= 7 so x= 7
Step-by-step explanation:
please mark brainly
A quadratic function y = f(x) is plotted on a graph and the vertex of the resulting
parabola is (-4,-6). What is the vertex of the function defined as
g(x) = f(x) + 3?
Answers
Answer:
(- 4, - 3 )
Step-by-step explanation:
Given f(x) then f(x) + c is a vertical translation of f(x)
• If c > 0 then a shift up of c units
• If c < 0 then a shift down of c units
For
g(x) = f(x) + 3
This is the graph of f(x) shifted 3 units up
Given the vertex of f(x) = (- 4, - 6 ), then
vertex of g(x) = (- 4, - 6 + 3) = (- 4, - 3 )
Kayley read 12 and 1/4 pages in 1/3 hour