Answer:
The cutoff value for the top 5% of all IQs is 131.255.
Step-by-step explanation:
When the distribution is normal, we use the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this question, we have that:
[tex]\mu = 100, \sigma = 19[/tex]
What is the cutoff value for the top 5% of all IQs
This is the 100 - 5 = 95th percentile, which is X when Z has a pvalue of 0.95. So X when Z = 1.645.
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]1.645 = \frac{X - 100}{19}[/tex]
[tex]X - 100 = 19*1.645[/tex]
[tex]X = 131.255[/tex]
The cutoff value for the top 5% of all IQs is 131.255.
complete the missing value in the solution to the equation.^
Answer:
10
Step-by-step explanation:
subtract 5y from both sides of the equation
Find the value of x in the figure below: (Round to the nearest hundredth)
Answer:
um I think that the value of x is 41 try it but i'm not really sure...
Step-by-step explanation:
Find the perimeter and area of the rectangle.
6.9 in
2.4 in
Answer:The perimeter = 18.6 , The area= 16.56
Step-by-step explanation: The perimeter is all sides added together and there are four sides and two sides are even , so there are two ways to find it. {1} 6.9x2=13.8 , 2.4x2=4.8; 13.8+4.8=18.6…{2} 6.9+6.9+2.4+2.4=18.6.
The area is two sides multiplied together so, 6.9x2.4=16.56
4(x-7)=2(x+3) solve for x
Answer:
x=17.... I checked on mathaway and did it myself should be correct
Answer:
x=17
Step-by-step explanation:
2(x-7)=(x+3) divide both sides by two
2x-14 =(x+3) distribute
2x-14-x-3=0 substract x+3
x-17=0 combine like terms
x=17 add 17 to both sides
Twice the quantity of 4d increased by 9 is 33.
play with my melons and drool my girl part
Step-by-step explanation:
it would feel so good and after i can make you com it will make you feel better
what is 4/7÷2/3? please help me with this
Answer:
Hi! The correct answer is 8/21!
Step-by-step explanation:
~Simplify the expression~
Answer:
Um 0.09523809523. Yeah
Tina contributes 9.5% of her monthly salary towards her 401(k) and her employer matches her contribution up to
5.4% of her annual salary. If the interest rate of her 401(k) is 8.1% compounded monthly and her monthly salary is
$2,461, determine the amount in her account after 25 years. Round to the nearest cent
a$339,804.33
$354,452.86
$344,941.24
d. $347.269.59
b
C
Answer:
A: $339,804.33
Step-by-step explanation:
YOU HAVE THE ANSWER BE HAPPY!! /( 0 v 0 )"/
Answer:
a
Step-by-step explanation:
Pls answer I need help!!
heyyyy someone help me with this
Answer:
1. 1 hour per day
2. sorry i don't know the answer
Step-by-step explanation:
7hours 30minutes - 1hour 30minutes = 6hours
6 divided by 6 = 1hour
The velocity in meters per second of a ball that is dropped from a window at a hight of 10.5 meters is represented by the equation v = √2(9.8)(10.5). Estimate the velocity of the ball. Round your answer to the nearest tenth.
Answer:
14.3 meters per second.
Step-by-step explanation:
v=2(9.8)(10.5)
v=205.8
v=14.3
Answer:
v=145.522576 becuase you simpilyfy the equarion and you get this
Step-by-step explanation:
rounded to the nearest tenth it would be 145.5
Find the value of x ASAP PLS
Answer:35
Step-by-step explanation:
9. What is 3/8x3/8x3/8 written as a power?
Answer:
3^3/8^3
Step-by-step explanation:
because since there are 3 three's in 3/8, it will have to be 3^3 and since there are 8 three's, it will be 8^3. so the answer will be 3^3/8^3
The representation of the expression (3/8)x.(3/8)x.(3/8)x in terms of power is [(3/8)x]³.
What is a numerical expression?A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.
Given, An expression (3/8)x.(3/8)x.(3/8)x.
= (3/8)×(3/8)×(3/8)×x×x×x.
= (3/8)³×x³.
= [(3/8)x]³.
learn more about numerical expressions here :
https://brainly.com/question/29199574
#SPJ5
Which inequality is true
The system has how many solutions?
Answer:
two solutions ldk because thethe lines are split into four and if you take away two you still have four more I really don't know this
Answer:
No solution.
Step-by-step explanation:
[tex]y = 2x + 3 \\ y = 2x - 1[/tex]
Both equations are in slope-intercept form so we can combine both equations.
[tex]2x + 3 = 2x - 1[/tex]
Solve the equation.
[tex]2x - 2x = - 1 - 3 \\ 0 = - 4[/tex]
Both sides are different. Therefore, both graphs are parallel and no solutions.
For what values of x and y are the triangles to
the right congruent by HL?
Answer:
x = 6
y = 2
Step-by-step explanation:
For both triangles to be congruent, their hypotenuse lengths and the corresponding length of the other leg must be equal to each other.
Thus:
x = y + 4 ---› Eqn. 1
x + 2 = 4y ----› Eqn. 2
Substitute x = (y + 4) into equation 2.
(y + 4) + 2 = 4y
y + 4 + 2 = 4y
y + 6 = 4y
y - 4y = -6
-3y = -6
y = 2
Substitute y = 2 into equation 1
x = y + 4 ---› eqn. 1
x = 2 + 4
x = 6
classify the triangle that satisfies the following set of conditions: one obtuse angle and no congruent sides. (Check your spelling.) *
Answer:
A scalene triangle
Step-by-step explanation:
A scalene triangle is a triangle with unequal interior angles
Blue Sky Jeans Company manufactures jeans.
A machine cuts the fabric pieces and workers sew
them.
One worker can sew the fabric pieces for a 1/2
pair of jeans in 1/8
hours?
How long does it take a worker to sew one pair of
jeans?
Answer: 1/4
Step-by-step explanation:
What is the difference of 54.567 and 361.02
Answer:
-306.453
Step-by-step explanation:
306.453
(i just used a calculator hsfgkhd)
I have collected 10 can of food.I am 50% complete with my final goal.how many many cans do I want to collect?
Answer:
20
Step-by-step explanation:
If you have collected 10 cans of food, and you are 50% compleated, 50% is half, 50 x 2 is 100, so 10 x 2 =20
create a table and graph y=x+1 demos
Answer:
The table will be:
x y=x+1
1 2
2 3
3 4
4 5
5 6
The graph is shown in figure attached.
Step-by-step explanation:
We need to create table and graph the expression: [tex]y=x+1[/tex]
Table is made, such that we take value of x and find value of y
You can take any values of x from negative values to positive values. I am taking values of x: 1,2,3,4,5 and find value of y.
So our table will be:
x y=x+1
1 2
2 3
3 4
4 5
5 6
Now, we will plot these value on the graph. x values will be on x-axis and corresponding y-values will be on y-axis.
The graph is shown in figure attached.
Analyze the diagram below and complete the instructions that follow.
Find the value of x.
Answer:
10
Step-by-step explanation:
since it is a right angle triangle
[tex] {x}^{2} = ({5 \sqrt{2} })^{2} +({5 \sqrt{2} })^{2} [/tex]
[tex] x = \sqrt[2]{(5 \sqrt{2} )^{2} +( 5 \sqrt{2})^{2}} [/tex]
[tex]x = \sqrt{(25 \times 2) + (25 \times 2)} [/tex]
[tex]x = \sqrt{50 + 50} [/tex]
[tex]x = \sqrt{100} [/tex]
[tex]x = 10[/tex]
Mark agreed to babysit his younger cousin every Wednesday for the same hourly rate. Last Wednesday, Mark made $38 for babysitting for 4 hours. What
equation can be used to determine how much money, Mark will make for every hour, he babysits, so long as the hourly rate stays the same each time?
Answer:
38 divided by 4
Step-by-step explanation:
−3−3/4(c−4)=5/4
anser for c
offering brainlyest in the next ten minutes
Answer:
okay so it is −
3
−
1
⋅
3
4
(
−
4
)
=
5
4
−
3
−
3
4
(
−
4
)
=
5
4
Step-by-step explanation:
Marco can hit the archery target 3 out of every 15 times he shoots. If he missed 48 times, how many times will he be expected to hit the target?
Answer: 12
15-3=12 miss ratio
48misses/12 sets of misses= 4 sets of 15 shots
Up to twelve 4*3 twelves accurate shots provided he shot at least 60
Step-by-step explanation:
Which angles form a linear pair? Helppp
Given:
Pairs of angles in options.
To find:
The angles that form a linear pair.
Solution:
Linear pair: Two angles are called linear pair if they are lie on the same side of a straight line and their sum is 180 degrees.
In the given figure, we have two straight lines MO and NP.
Linear pairs for line MO are
[tex]\angle MRN[/tex] and [tex]\angle NRO[/tex]
[tex]\angle MRP[/tex] and [tex]\angle ORP[/tex]
[tex]\angle LRM[/tex] and [tex]\angle LRO[/tex]
Linear pairs for line NP are
[tex]\angle ORP[/tex] and [tex]\angle NRO[/tex]
[tex]\angle MRP[/tex] and [tex]\angle MRN[/tex]
[tex]\angle PRL[/tex] and [tex]\angle LRN[/tex]
So, pairs of angles in options A, B and D are not linear because they are not lie on the same side of a straight line.
Therefore, the correct option is C.
An apple is cut into 6 equal slices. Nancy eats 2 of the slices. What fraction of the apple is left?
Answer:
Fraction of apple pieces left = 4/6 = 2/3
Answer:
4/6.
Step-by-step explanation:
Nancy first ate 6, which equals 6/6. then she ate 2, which is 4/6.
Give the least common
multiple:
3a, 15
Answer:
3
Step-by-step explanation:
3 goes into 3a once and 15 5 times
The student council started with 50 cans of food for the food drive and then
collected 5 per student.
Multiply: (3x + 6)(5x+2)
Answer:
Hi! The correct answer is 15x^2 + 36x + 12!
Step-by-step explanation:
~Expand the polynominal using the FOIL method~
Answer:
1 5 [tex]x^{2}[/tex] + 3 6 + 1 2
Step-by-step explanation:
Francesca must buy over $55 worth of art supplies to qualify for free shipping
Answer
the question isn't complete
Step-by-step explanation
cool