Answer:
hello your question is incomplete below is the complete question
A company's human resources department was interested in the average number of years that a person works before retiring. The sample of size 11 follows: 12 16 18 19,21 21, 21,22 24 24 26What is the arithmetic mean, median and mode? what is the most likely shape of the distribution
answer :
i) mean = 20.36
ii) median = 21
iii) mode = 21
iv) The most likely shape is a Bell - shaped curve
Step-by-step explanation:
sample size = 11
values ( observations ) = 12, 16, 18, 19,21,21,21,22,24,24,26
i) mean
= ∑ values / sample size = 224 / 11 = 20.36
ii) median
median is the value of the data located at the center of the string of data
to determine the middle position = ( n+1 / 2 )
where n = sample size
hence position of median value = 11 + 1 / 2 = 12 / 2 = 6
the value at the 6th position = 21 ( median )
iii) mode
mode = most repeated value in the series of data
hence mode value = 21
the u.s. landfill contained a total of 200 million tons of trash how many more million tons of trash has been paper than Rubber and leather?
Answer:
9,160,000 tons
Complete this page STEP BY STEP
Answer:
Sample space is the collection of all possible events.
So, sample space of tossing two coins, S=(H,T),(T,T),(T,H),(H,H)
Step-by-step explanation:
Which function is represented by the graph below?
Answer:
Step-by-step explanation:
y=-4x+2
Answer:
y=2x-4
Step-by-step explanation:
Becuase the x axis croses -4, so you would draw a line starting at the bottom through negative 4. Then since their is a positive 2 you would keep drawing the line on the untill you see a 2 which would be on the y axis.
Select all the expressions that are solutions to 9 = 1/3x
Answer:
first and last expressions are correct.
In order to determine whether or not there is a significant difference between the mean hourly wages paid by two companies (of the same industry), the following data have been accumulated.
Company A Company B
Sample size 80 60
Sample mean $16.75 $16.25
Population standard deviation $1.00 $.95 The p-value is:_________
a. 0.0084.
b. 0.0042.
c. 0.0026.
d. 0.0013
Answer:
The p-value is;
d. 0.00131
Step-by-step explanation:
The given question parameters are;
Company A [tex]{}[/tex] Company B
Sample size 80[tex]{}[/tex] 60
Sample mean [tex]{}[/tex] [tex]\overline x_1[/tex] $16.75 [tex]\overline x_2[/tex] $16.25
Population standard deviation [tex]{}[/tex] σ₁ $1.00 σ₂ $0.95
[tex]z=\dfrac{(\bar{x}_{1}-\bar{x}_{2})-(\mu_{1}-\mu _{2} )}{\sqrt{\dfrac{\sigma_{1}^{2} }{n_{1}}+\dfrac{\sigma _{2}^{2}}{n_{2}}}}[/tex]
Therefor, we have;
[tex]z=\dfrac{(16.75-16.25)-(0-0)}{\sqrt{\dfrac{1^{2} }{80}+\dfrac{0.95^{2}}{60}}} \approx 3.0128[/tex]
The p-value = 1 - 0.99869 (the area to the right of 3.01) = 0.00131
The volume of a large aquarium is 210 ft it is 3 3/5ft wide and 2 4/5 ft high what is the length of the aquarium
Answer:
21 ft
Step-by-step explanation:
Write an expression for "the difference of 6 and k."
Answer:
6-k
Step-by-step explanation:
difference is subtraction so it is 6-k
I don’t know what to do
Answer:
i think it would be the first one i am not 100% sure just a gues
Step-by-step explanation:
Answer this correctly and explain your answer and I’ll give u brainalist + 10 points
Answer:
D: 43
Step-by-step explanation:
No need
what's the value of s for s + 10 = 6?
-4 is the value for s
A band director is trying to decide what music to play for the halftime show. She surveys the marching band
students to get their opinions about which music they would prefer. Which of the following sampling techniques
would provide a stratified random sample that would accurately represent the students' opinions?
Have a computer randomly sort the band members, then select the first 30.
O Randomly select 2 students from each type of instrument (trumpet, saxophone, clarinet, etc.).
O Randomly pick a letter of the alphabet and survey every student whose last name begins with that letter.
Randomly pick a year of students (freshman, sophomore, junior, or senior) and survey every student from the
selected group
Mark this and retum
Save and Exit
Nex
Submit
Answer:
B
Step-by-step explanation:
16,000 grow 3% each year
Answer:
Step-by-step explanation:
[tex]y=ar^t\\ \\ y=16000(1.03^x)[/tex]
Help me answer this please!!
Answer:
Step-by-step explanation:
Alyssa will correctly label the numbers 48.8 48 48.09 and 48 on the number line below Which number will be located closest to 48
Answer:
the answer is (6*10^6)
Step-by-step explanation:
Multiply the beginning numbers and add the exponents.
Tell whether the angles are adjacent or vertical. Then find the value of x. (4x-25)
Answer:
i dont see the angles but heres how to solve for X
Step-by-step explanation:
please write an equation of a line in slope-intercept form with the given slope and y-intercept.
A. slope: -6, y-intercept: -2
B. slope: 1, y-intercept: -12
Solve the equation using the method of factorisation-
x2 - 4x - 45 = 0
x² + 4x -9= (x + a)^2 + b
Find the value of a and the value of b.
Answer:
X = 9,X= -5, a = 2, b = -13
Step-by-step explanation:
For (1),
Using Cross-factorization,
it can be reduced to (X - 9)(X + 5) = 0
Equate each factor to 0:
we have X = 9 and X = -5
For (2),
It is the case of completing the Square,
add 4 so we get the completed square ( we want the form X^2 + 2a + a^2)
(X^2 + 4X + 4) - 9
can be simplified to (X+2)^2 -9
However since we added 4 it means we have to subtract 4
So it becomes (X+2)^2 -9 -4
= (X+2)^2 -13
Question 1 (10 points) What is the sum of two fractions: 3/4 + 1/6
Answer: 11/12 or 0.916
Step-by-step explanation: hope this helps!
Find the radius of a circle in which the central angle, a, intercepts an arc of the given length
a = 30°, s = 9in
Answer:
17.2 in
Step-by-step explanation:
The formula for arc length is s = rФ. Here we are to find r. Solving this formula for r, we get:
r = s/Ф
So, in this problem, r = (9 in) / (π/6) = 54/π in ≈ 17.2 in
Solve for x Enter the solutions from least to greatest . (x - 4)(- 5x + 1) = 0 lesser x = greater x =
Answer:
dont know maybe someone else can help u
:€
Answer:
lesser x=1/5
greater x =4
Step-by-step explanation:
Please refer to the attachment
what is the equation to 3x+2x+-x
Answer:
the answer qould be 4x if you are just simplifying
How many permutations are there of the letters in the following word, if all the letters are used without repetition?
ADMIRES
Give the answer using permutation notation, factorial notation, or other operations. Then evaluate.
ADMIRES is the word
Answer:
5040 permutations
Step-by-step explanation:
Plz help I put a pic there for u
Answer:
5
Step-by-step explanation:
because it takes 4 1/5 paint for each canvas 5 times 4 1/5 is 21.
prove that the roots of x2+(1-k)x+k-3=0 are real for all real values of k
The roots of x^2 + (1 - k).x+k-3 = 0 are real for all real values of k
The equation is given as:
x^2 + (1 - k).x+k-3 = 0
For an equation to have real root, then the following must be true:
[tex]b^2 \ge 4ac[/tex]
In x^2 + (1 - k).x+k-3 = 0, we have:
a = 1
b = 1 - k
c = k - 3
So, we have:
[tex](1 - k)^2 \ge 4 * 1 * (k - 3)[/tex]
Evaluate
[tex]1 - 2k + k^2 \ge 4k - 12[/tex]
Collect like terms
[tex]k^2 - 2k - 4k + 1 + 12 \ge 0[/tex]
[tex]k^2 - 6k + 13 \ge 0[/tex]
Using a graphing calculator, the value of k is all real numbers
Hence, the roots of x^2 + (1 - k).x+k-3 = 0 are real for all real values of k
Read more about real values at:
https://brainly.com/question/6499629
write the ordered pair for each point. PLS! I will give 20 points did correct same goes with brainliest. DO NOT TYPE THAT YOU DON'T KNOW OR I WILL FLAG, REPORT AND GET MAD!
Answer:
M=(0.75,1.25)
H=(-1.5,-0.5)
D=(1,-1.75)
Step-by-step explanation:
Hope this helps.
4/9x6= (write in simplest form)
Answer:
24/7
Step-by-step explanation:
Answer:
8/3
Step-by-step explanation:
4 * 6 = 24 8
9 9 3
which is equivalents to 9/8
Answer:
12
Step-by-step explanation:
Answer: 9/8 , 18/16 , 27/24 , 36/32 , 45/40 , 54/48 , 63/56
find the quotient 1 7/8 / 5 5/8
what is the surface area of the rectangle prism below? HELP ME ASAP PLEASE !!
Answer:
C. 248
Step-by-step explanation:
[tex]A=2(wl+hl+hw)\\2(4*6+10*6+10*4)\\2(24+60+40)\\48+120+80=248[/tex]
Write a question that represents the following equation. 5 · n = 35. plssss help hurry
Answer:
what is the value of {n}to get product 35?
Step-by-step explanation:
(n is seven by the way!!)
Answer:
James is buying lemons for his grandmother, if 5 lemons cost $35, then how much does 1 cost? (n=7 if you are solving)
Step-by-step explanation:
Write in summation notation.
11) -2+ 1 + 4+...
+ 13
I’ll give brainliest to whoever answers correctly first