Answer:
I'm guessing the answer is 7?
In 2003, the average combined SAT score (math and verbal) for college-bound students in the United States was 1026. Suppose that approximately 45% of all high school graduates took this test and that 100 high school graduates are randomly selected from among all high school grads in the United States. Which of the following random variables has a distribution that can be approximated by a binomial distribution? Whenever possible, give the values for n and p.
a. The number of students who took the SAT
b. The scores of the 100 students in the sample
c. The number of students in the sample who scored above average on the SAT
d. The amount of time required by each student to complete the SAT
e. The number of female high school grads in the sample
Answer:
The random variables which has a distribution that can be approximated by a binomial distribution is:
c. The number of students in the sample who scored above average on the SAT.
Step-by-step explanation:
The binomial distribution in this scenario will be between the number of students in the sample who scored below average on the SAT and the number of students who scored above average. Variables that have a binomial distribution must meet these four conditions:
1: The observed number of students who sat for the SAT 'n' is not variable.
2: Each student's score (observation) is purely independent of each other, either above or below average scores.
3: Each student's score (observation) shows one of the two outcomes ("success" or "failure"). Those below average are "failures." Those above average are "successes."
4: The outcome probability of "success" 'p' for each student is the same.
what means ratio with explanation
can anyone help me thanks
Answer:
Option B: 1.3 hours is the correct answer.
Step-by-step explanation:
Given that:
Total distance = 140 miles
Speed on city roads = 35 miles per hour
Time travelled = 1.5 hours
Distance covered on city roads:
[tex]Distance = Speed * Time\\Distance = 35 * 1.5\\Distance = 52.5 miles[/tex]
Distance travelled on highway = Total distance - Distance on city roads
Distance travelled on highway = 140 - 52.5 = 87.5 miles
Speed on highway = 65 miles per hour
Time = [tex]\frac{Distance}{Speed}[/tex]
[tex]Time =\frac{87.5}{65}\\Time = 1.3\ hours[/tex]
Hence,
Option B: 1.3 hours is the correct answer.
Why do we
call fractions
such as 8/6
improper.
Please help
Answer:
Because the numerator cannot be higher than the denominator
Step-by-step explanation:
8/6 would be counted as incorrect bc the numerator (8) cannot be higher than the denominator (6). so it would be written as 1 2/6
Pls Help! 100 points and branliest!
How do I solve for X
[tex]log_{6}(2x-7)=4[/tex]
Answer: x = 651.5
Step-by-step explanation:
First, we can re-write the equation as [tex]6^4[/tex] = 2x - 7.
Now, we simplify 6^4 = 1296.
1296 = 2x - 7
1303 = 2x
x = 651.5
I NEED HELP please
Answer:
1. =2
2. times 2
3. b.
Step-by-step explanation:
What is the solution to the equation? 9−3x=12x+10
Answer:
-1/15
Step-by-step explanation:
Answer:
x=-15
Step-by-step explanation:
9-3x=12x+10
-10
-1-3x=12x
+3x
-1=15x/-1
Which relationship is a function?
teachers and their pets
Output
Input
January
30 tons
Ms. Valverde
Mr. Fanning
February | 28 tons
March
25 tons
dog
cat
fish
Input
Output
Input
Output
И
3
9
10
12
13
Step-by-step explanation:
these are the functions
and the others are not a functions because the domain can't match to more than one
The relationship, (January, 30), (February, 28), and (March, 25) is a function.
What is a function?A function can be defined as the outputs for a given set of inputs.
The inputs of a function are known as the independent variable and the outputs of a function are known as the dependent variable.
We know, A relation from a set A to a set B is a function if no two distinct ordered pairs have the same x-coordinate value.
Or a relation is a function if each input has a different output.
From the given options, Option (I) is a function as the ordered pairs are,
(January, 30), (February, 28) and (March, 25).
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A: 30/6 = 6/1
B: 30/45 = 10/15
C: 32/8 = 20/4
Which two fractions are equivalent?
Step-by-step explanation:
B and A are equal. :) hope I helped!
Answer:
b. 30/45 = 10/15; reduce by 3
Step-by-step explanation:
a. 30/6 = 5 not 6 so no
c. 32/8 = 4. even if you reduced by 2, it would be 16/4 so no
N is an integer.
Write the values of n such that -15<3n≤6
Answer:
n = - 4, - 3, - 2, - 1, 0, 1, 2
Step-by-step explanation:
Given
- 15 < 3n ≤ 6 ( divide the 3 intervals by 3 )
- 5 < n ≤ 2
Thus n ≠ - 5 but n can equal the upper limit of 2
Hence
n = - 4, - 3, - 2, - 1, 0 , 1, 2
What is this? Please answer with an explanation
Answer:
No
Step-by-step explanation:
Given
f(x) = [tex]\sqrt{x-10}[/tex] + 11 ← substitute x = 1
f(1) = [tex]\sqrt{1-10}[/tex] + 11
= [tex]\sqrt{-9}[/tex] + 11
[tex]\sqrt{-9}[/tex] is not real and therefore x = 1 does not have a real output for f(x)
If n=4, the value of the expression 28-12 + Vn 2 is
15
17
21 helpppppppp
Answer:
17
Step-by-step explanation:
Answer:
it is 17
Step-by-step explanation:
I tested it out.
A soda pop manufacturer runs a contest and places a winning bottle cap on every sixth bottle. If a person buys the soda pop, find the probability that the person will win for the first time on his third purchase.
Answer:
[tex]\dfrac{25}{216}[/tex]
Step-by-step explanation:
From the given information:
The probability (p) of winning a bottle cap = [tex]\dfrac{1}{6}[/tex]
The probability of not winning a bottle cap will be (q) = 1 - p
[tex]= 1- \dfrac{1}{6}[/tex]
[tex]= \dfrac{5}{6}[/tex]
Since we are told that the winning is placed once on every sixth bottle
Then the required probability = P( of not winning the first purchase) × P( of not winning the second purchase) × P( of winning the third purchase)
[tex]= \dfrac{5}{6} \times \dfrac{5}{6} \times \dfrac{1}{6}[/tex]
[tex]= \dfrac{25}{216}[/tex]
Carson has a beach ball with a diameter of 50 cm what is the approximate volume of the beach ball? use 3.14 as an approximation for Pi
Radius=1/2 of Diameter
radius=1/2×50
radius=25
Volume of Sphere= 4/3 pie r^3
=4/3×22/7×25×25×25
=4/3×3.14×625×25
=4/3×3.14×16625
=4/3×52202.5
=4×17400.83
=69603.32
Volume of Sphere is 69603.32 sq.cm^3
help !! asap
!!!!!!!!!
Find the amount of sales. earnings: $150 commission: 20%
16 and 1/3 reciprocal
a hummingbird egg's mass
Answer:
A hummingbird eggs mass is approximately 0.374 mg.
Answer:
Hummingbird Nesting Habits. First of all, we must remember that there are about 17 species of hummingbirds found in the US and not all of these different species have the same nesting habits. The most prominent difference lies in their choice of location for the nest (but more on this later), nevertheless there is not much difference in the way they build their nests and tend to their young.
Step-by-step explanation:
give all credit to my brain
what 1/3 X 1/6 in simplest form?
1/18 would be your answer because 3 * 6 = 18. so 18 is your denominator. 1 * 1 is still 1 so that would be your numerator. You cant simplify the numerator because it's a one and can't be simplified by any other number but 18 can be simplified but it wouldn't make sense to just simplify the denominator and not the numerator so It would stay as 1/18.
In which number does the digit 7 have a value that is 10 times as great as the digit 7 in the number 0.975
Answer:
ten :)))))))))))))))))))))))))
HELPPP! D got cut off at the end
Answer:
I'm pretty sure the correct answer is A from the info given
Step-by-step explanation:
Simplify the following: 6i^3 +4j^2 -6i
Please show work
Answer:
Concept: Vectors
I think the confusion here might be the usage of i and j Just to let you know, i=x and j=y So let's use that fact to conceptualize this 6x^3+4y^2-6x We can simplify by applying a common factor 2(x^3+2y^2-3x) Thats the most we can simplify thisplease help asap no trolls!
Answer:
[tex]D. These\ triangles\ cannot\ be\ proven\ congruent[/tex]
Step-by-step explanation:
[tex]We\ are\ given:\\TU=SQ\\TP=PQ\\\angle TPU= \angle SPQ [Vertically\ Opposite\ Angles\ Are\ Equal]\\Hence,\\As\ we\ are\ given,\ 2\ sides\ and\ 1\ angle\ of\ each\ triangle\ correspond,\ we\\ could\ use\ the\ SAS\ Congruency Rule.\\But:\\[/tex]
As SAS Congruency Rule tells us that 'Two triangles are congruent only if two sides and an included angle of one triangle corresponds to two sides and an included angle of the other' .
Here,
As ∠TPU and ∠SPQ are NOT the included angle of ΔTUP and ΔSPQ respectively, the two triangles cannot be proven congruent through SAS Congruency.
Note: We also cannot apply SSA congruency as SSA congruency doesnt exist.
Find the equation of the graphed line.
a. y = -2x + 5
b. y = -2/5x + 2
c. y = 2x + 5
d. y = -5/2 x +5
[tex]\boxed{\boxed{\pink{\bf \leadsto Hence \ option\ [d]\ \bigg(y = \dfrac{5}{2}x + 5\bigg) \ is \ correct }}}[/tex]
Step-by-step explanation:Here from the given graph we can see that the graph the graph intersects x axis at (2,0) and y axis at (5,0). On seeing options it's clear that we have to use Slope intercept form . Which is :-
[tex]\large\boxed{\orange{\bf y = mx + c} }[/tex]
We know that slope is [tex]\tan\theta[/tex]. So here slope will be ,
[tex]\red{\implies slope = \tan\theta} \\\\\implies slope =\dfrac{PERPENDICULAR}{BASE} \\\\\bf \implies slope =\dfrac{5}{2} [/tex]
Hence the slope is 5/2 . And here value of c will be 5 since it cuts y axis at (5,0).
[tex]\purple{\implies y = mx + c }\\\\\implies y = \dfrac{5}{2}x + 5 \\\\\underline{\boxed{\red{\tt \implies y = \dfrac{5}{2}x + 5 }}}[/tex]
Hence option [ d ] is correct .The equation of the graphed line is y = (-5/2)x + 5
Option D is the correct answer.
What is an equation of a line?The equation of a line is given by:
y = mx + c
where m is the slope of the line and c is the y-intercept.
Example:
The slope of the line y = 2x + 3 is 2.
The slope of a line that passes through (1, 2) and (2, 3) is 1.
We have,
Two coordinates from the graph.
(2, 0) and (0, 5)
The equation of the line is y = mx + c.
m = (5 - 0)/(0 - 2)
m = 5/-2
m = -5/2
(2, 0) = (x, y)
0 = (-5/2) x 2 + c
0 = -5 + c
c = 5
Now,
The equation of the line.
y = (-5/2)x + 5
Thus,
y = (-5/2)x + 5 is the equation of the line.
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kirkland offered a 25% discount off the regular price of a picture frame. the amount of the discount is 15$. what is the regular price of the picture frame?
Answer:
orignal price of frame is 60
Step-by-step explanation:
let regular price be a
25% x a = 15
25/100 x a=15
a=15 x 100/25
a=3 x 20 = 60
1.
A toy store is preparing for the
winter holiday season. The
manager is reviewing the current
inventory and comparing it to the
forecasted inventory needed that
is based on last year's sales.
What is the forecasted need for
board games?
Toy Inventory, 2016
Help plssssssssssssssssss
Answer: J. Rollerama charges $30 plus $4.50 per person. Maria has $129.
Step-by-step explanation: 129-30= 99 99/4.5= 22
What is the value of - |-60| ?
Answer:
-60
Step-by-step explanation:
absolute value cancels the negative
then the negative outside the absolute value makes it negative.
The radius of the circle whose equation is (x - 3)2 + (y + 1)2 = 16 is
04
00
O 16
Amy started with $125 in her savings account. She deposited $25, withdrew $15, and then deposited $30. How much money is in Amy’s savings account now?
Answer:
she now has $165 in her savings account
Answer:
$165
Step-by-step explanation:
125+25=150
150-15=135
135+30=165