Using the hypergeometric distribution, it is found that the probabilities are given as follows:
a) 0.2059 = 20.59%.
b) 0.5294 = 52.94%.
c) 0.2647 = 26.47%.
What is the hypergeometric distribution formula?
The formula is:
[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}[/tex]
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
The parameters are:
x is the number of successes.N is the size of the population.n is the size of the sample.k is the total number of desired outcomes.In this problem, the parameters are as follows: N = 17, k = 8, n = 2.
Item a:
This probbility is P(X = 2), hence:
[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}[/tex]
[tex]P(X = 2) = h(2,17,2,2) = \frac{C_{8,2}C_{9,0}}{C_{17,2}} = 0.2059[/tex]
Item b:
This probbility is P(X = 1), hence:
[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}[/tex]
[tex]P(X = 1) = h(1,17,2,2) = \frac{C_{8,1}C_{9,1}}{C_{17,2}} = 0.5294[/tex]
Item c:
This probbility is P(X = 0), hence:
[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}[/tex]
[tex]P(X = 0) = h(0,17,2,2) = \frac{C_{8,0}C_{9,2}}{C_{17,2}} = 0.2647[/tex]
More can be learned about the hypergeometric distribution at https://brainly.com/question/24826394
A rectangular frame has width 7 inches longer than its length. What is the width of the painting if it’s area is 18in^2
Answer:
9 inches
Step-by-step explanation:
Expand the following
b) 3(2x + 3)
Answer:
6x+9
Step-by-step explanation:
3 x 2x =6x
3x3=9
=6x+9
Answer:
ans is 6x+9
Step-by-step explanation:
3 (2x+3)
=6x+9
What is 52 - (36/3) x 4
Answer:
=3
Step-by-step explanation:
Find the distance between 3 3/8
and −4 5/8
on a number line. Write your answer in simplest form.
Answer:
8
Step-by-step explanation:
The distance can be found by subtracting the left number from the right number:
(3 3/8) -(-4 5/8) = (3 3/8) +(4 5/8)
= (3 +4) +(3/8 +5/8) = 7 + 8/8
= 8
The distance between the points is 8 units.
Marion is 3 feet tall. She is 4 inches taller than her brother Elijah.She is 1 1/4 feet shorter than her sister Lorie. How tall are Elijah and Lorie, Show your work. (1 foot = 12 inches)
Answer:
3-4 inch= 2.8feet
11/4 = 2.75
2.8-2.75=0.05
Elijsh=2.8
lorie= 2.85
How do you do this question?
Answer:
1
Inconclusive
Step-by-step explanation:
aₙ = (-1)ⁿ / (n + 6)
aₙ₊₁ = (-1)ⁿ⁺¹ / (n + 1 + 6)
lim(n→∞)│aₙ₊₁ / aₙ│
lim(n→∞)│[(-1)ⁿ⁺¹ / (n + 1 + 6)] / [(-1)ⁿ / (n + 6)]│
lim(n→∞)│[(-1)ⁿ⁺¹ / (n + 7)] × [(n + 6) / (-1)ⁿ]│
lim(n→∞)│[(-1)ⁿ⁺¹ / (-1)ⁿ] × [(n + 6) / (n + 7)]│
lim(n→∞)│-1 × [(n + 6) / (n + 7)]│
lim(n→∞) [(n + 6) / (n + 7)]
1
The limit equals 1, so the ratio test is inconclusive.
4000 is 0.8% of what number?
Answer:
the correct answer should be 500,000 hope this helps
4000 is 0.8% of 500000.
What is the missing side length in this right triangle? 9 in & 12 in
15 is the value of the missing side of the right-angled triangle.
An isosceles triangle, which consists of a pair of sides as well as sides with angles identically, is additionally recognized as a right triangle. Two 45° angles and a 90° angle make up a right isosceles triangle. The triangle's three sides add up to 180 degrees in total.
The information that is provided is with respect to the right triangle:
Side 1 is given as = 9
Side 1 is given as = 12
Applying the Pythagoras theorem:
[tex]H^{2} = S1^{2} + S2^{2} \\= 9^{2} + 12^{2} \\\\= 81 + 144\\=225\\h = \sqrt{225} \\h = 15[/tex]
Learn more about right-angle triangles, here:
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How do you do this question?
==========================================
Work Shown:
[tex]\displaystyle S_n = \sum_{k=1}^{n} \frac{1}{k}\\\\\\\displaystyle S_4 = \sum_{k=1}^{4} \frac{1}{k}\\\\\\\displaystyle S_4 = \frac{1}{1}+\frac{1}{2}+\frac{1}{3}+\frac{1}{4}\\\\\\\displaystyle S_4 = \frac{12}{12}+\frac{6}{12}+\frac{4}{12}+\frac{3}{12}\\\\\\\displaystyle S_4 = \frac{12+6+4+3}{12}\\\\\\\displaystyle S_4 = \frac{25}{12}\\\\[/tex]
Note: in step 3, I'm adding terms in the form 1/k where k ranges from k = 1 to k = 4 (k being an integer)
Which line has a slope of -3 over four and a Y intercept of three over two
2. If the price of that t-shirt drops by 6 dollars, I will be able to buy 3 of them with my $24 dollars. How much is the t-shirt now?
Answer:
the current price of the shirts is $14
Step-by-step explanation:
24÷3 is 8 so they would be $8 each if they could afford to buy 3. so if its currently $6 more then it is $14 because 8+6=14
A runner can travel 340 meters in 20 seconds.At this rate,how far does the runner go in 1 minute?
Answer:
1020 m
Step-by-step explanation:
340 x 3 = 1020
Answer:
6800
Step-by-step explanation:
b. El empleado de una compania tiene un sueldo mensual de L. 23, 865,00, en el mes de marzo del 2019 se le hizo una rebaja
del 20% por llegadas tarde al trabajo. Cuanto se le dedujo? ¿Qué sueldo neto saco ese mes?
Ese mes se le dedujeron $4774, y cobró un sueldo de $19,092.
Cálculo de cantidadesDado que el empleado de una compañía tiene un sueldo mensual de L. 23, 865,00, y en el mes de marzo del 2019 se le hizo una rebaja del 20% por llegadas tarde al trabajo, para determinar cuánto se le dedujo y qué sueldo neto sacó ese mes se debe realizar el siguiente cálculo:
100 - 20 = 8023,865 x 0.80 = X19,092 = X23,865 - 19,092 = 4773Por lo tanto, ese mes se le dedujeron $4774, y cobró un sueldo de $19,092.
Aprende más acerca de cálculos de cantidades en https://brainly.com/question/14342345
Write an equation in slope intercept form that has a
slope of -3/2 and a y intercept of 9
Answer:
y = -3/2x + 9
Step-by-step explanation:
y = mx + b
y = -3/2x + 9
What is the value of x?
Answer:
12
Step-by-step explanation:
(10x - 20) + (6x + 8) = 180
16x - 12 = 180
16x = 192
x= 12
Hi there!
This is an example of supplementary angles, angles that sum up to 180° (they form a straight line).
Summing these two angles up equals 180°, so:
180° = (10x - 20)° + (6x + 8)°
We can drop the ° sign for ease of solving.
180 = 10x - 20 + 6x + 8
Combine like terms:
180 = (10x + 6x) - (20 + 8)
180 = 16x - 12
Add 12 to both sides:
192 = 16x
Divide both sides by 16:
192/16 = 16x/16
x = 12°
The sum of the digits of a two-digit number is less than the value of the original two-digit number.
Answer:
38
Step-by-step explanation:
3+8=11
11<38
Find the solution set to the given equation. Answer only in numbers.
y(y +78) – 84(y + 78)
Answer:
(y-84) (y+78
Step-by-step explanation:
The phone company offers Rachel 12c per minute for her long distance calls. A discount company called Rachel and offered her long service for 1/2c per minute, but will charge a R46 monthly fee. How many minutes per month must Rachel talk on the phone to make the discount a better deal?
Step-by-step explanation:
x = number of minutes
the cost function (in c) of the phone company is
cp(x) = 12x
and the cost function of the discount company is
cd(x) = x/2 + 4600 (R46)
we now need to calculate for what x this becomes the same cost :
12x = x/2 + 4600
24x = x + 9200
23x = 9200
x = 400 minutes
she would have to talk for at least 400 minutes long distance per month to make it an even or then better deal.
with 400 minutes being the break-even point.
so, to make it a better deal (not just equal), she has to talk for at least 401 minutes per month.
On Nick’s playlist,5/12 of the songs ore pop what fraction of the songs are not pop used exercises 1-3 ton answer the question
Answer:
7/12
Step-by-step explanation:
umm the question is confusing but this is the answer i got if i understood it correctly
Determine the Value of x for the diagram shown.
A) 30
B) 45
C) 60
D) 80
How to solve 18 - 1 and 7/16 - 7/12 NOTE: Answer has to stay in fraction form.. The answer should be 15 and 47/48, but when I work it out I am not getting this answer. I do understand how they got 48 for denominator..
7/16 - 7/12 ?
common multiple of 16 and 12 = 48 ((3x16 and 12x4)
7/16 - 7/12 = (7x3) / (16x3) - (7x4) / (12x4) = 21/48 - 28/48 = - 7/48
f(x) = x2
g(x) = 2x + 4
evaluate
f(-1) - g(2)
Answer:
–2x2 + 13
Step-by-step explanation:
( f o g)(x) = f (g(x))
= f (–x2 + 5)
= 2( ) + 3 ... setting up to insert the input formula
= 2(–x2 + 5) + 3
= –2x2 + 10 + 3
True or false? sin 45° cos 30° − cos 45° sin 30° = sin 60° cos 45° − cos 60° sin 45°.
Answer:
The statement is false.
Which expression is equivalent to 56÷7?
What is the value of x when h(x) = −3?
Answer:
○ -1
Step-by-step explanation:
Looking closely at this piecewise function, when the line on the left-hand side intersects at -3 = y, x is -1.
i hope this work for you
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Which two numbers have a mean of 10 and a range of 4?
Answer:
I belive the correct answers are 8 and 12
Step-by-step explanation:
will give 20 points + brainliest
A. y-3=-2(x-4)
B. y-6=-1\2(x-2)
C. y-3=-1/2(x-4)
D. y-6=-1/2(x+2)
E. y-6=-2(x+2)
F. y-4=-1/2(x-3)
Answers:
A. y = -2x + 11
B. y = 1/2x + 5
C. y = -1/2x + 5
D. y = -1/2x + 5
E. y = 2x + 2
F. y = -1/2x + 11/2
Hope this helped! (brainliest please)
Evaluate the given function
Answer:
-4
Step-by-step explanation:
P(4)= 4^2 - (5*4)
= 16 - 20
= -4
22nd term: -2, -5, -8, -11, -14
Answer:
The pattern goes by adding -3.
Using the arithmetic sequence, you can find the 22nd term.
[tex]t_{22} = -2+(22-1)(-3)\\t_{22} = -2+21*-3\\t_{22} = -2-63\\t_{22} = -65[/tex]
Quickly plzzz F=3. G=-4. H=5. Evaluate equation plzz
Answer:
-4
Step-by-step explanation:
| f+g| - h
F=3. G=-4. H=5.
| 3 + -4| -5
| -1| -5
The absolute value of -1 is 1
1 -5
-4