Answer:
Standard Deviation (cont’d)Weights(pounds):110 120 130 140 150 150 160 170 180 190Deviation scores(x) forM = 150:-40 -30 -20 -10 0 0 10 20 30 40 Squared deviation scores(x2):1600 900 400 100 0 0 100 400 900 1600Sum of squared deviation scores:1600+900+400+100+0+0+100+400+900+1600 = 6000SD= √(6000/(N-1) = SD= √(6000/(9) = 25.82Standard Deviation Interpretation•Provides a “standard”—the SDindicates the average amount of deviation of scoresfrom the mean•Tells you how wrong, on average, the mean is•An SDprovides valuable information when the distribution is normal:–There are approximately three SDsabove and below the meanin a normal distribution•In a normal distribution, a fixed percentage of cases lie within certain distances from themeanSDs and Individual Scores•A person who scores one SDbelow the mean has a higher score than 16% of the cases (2.3% + 13.6%)•A person who scores one SDabove the mean has a higher score than 84% of the cases (50.0% + 34.1%)Example: Midterm marks:
A -yard-long field is divided into parts of equal length. Mr. Gump paints a 6-yard-long strip in each part. How long is the unpainted strip in each part of the field
Answer:
9 yards
Step-by-step explanation:
THE QUESTION ABOVE ISN'T COMPLETE THEN I FIND THE SAME QUESTION WITH JUST CHANGE IN VALUES. CHECK IT BELOW;
A 208-yard-long road is divided into 16 parts of equal length. Mr. Ward paints a 4-yard-long strip in each part. How long is the unpainted strip of each part of the road?
EXPLANATION:
From the question, a 208-yard-long road is been parted into into 16 parts and they all have equal length.
Then we can determine the Length of each part as
(208-yard-long road/16 parts )
= 13
Then each part has a length of 13 yards
From the question, we know that 4-yard-long strip was painted in each part by Mr. Ward. Which means to determine the
unpainted strip of each part, we are going to use the expresion below.
(Length of each strip - length of painted strip)
= (13 yards - 4-yard-long strip )
= 9 yards
Therefore, the length of unpainted strip of each part of the road is 9 yards
BRAINLIEST. Ariana has a loyalty card good for a discount at her local hardware store. The item she wants to buy is priced at $9, before discount and tax. After the discount, and before tax, the price is $7.56. Find the percent discount.
Answer:
16%
Step-by-step explanation:
Given data
Initial cost= $9
final cost= $7.56
Required
The percent discount
Step two
Percent discount= final-initial/initial *100
Percent discount= 9-7.56/9 *100
Percent discount=1.44/9 *100
Percent discount=0.16 *100
Percent discount=16%
Hence the percent discount is 16%
Yes
Yes
Yes
Yes
Yes
Yes
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Three years ago, Jolene bought $675 worth of stock in a software company. Since then the value of her purchase has been increasing at an average rate of 12 3 5 % per year. How much is the stock worth now? (Round each money calculation you make to the nearest cent.) The stock is worth $ now.
Answer:
= $963.65
Step-by-step explanation:
Value of stock = value of the stock at the time it was bought x ( 1 + average rate of increase)^number of years
$675 x [1 + (12 + 3/5% ) ]^3 =
$675 x ( 1 + 0.126)^3 = $963.65
Someone plz help I don’t understand!! Sad face
Answer: 41
Step-by-step explanation:
Substitute the given value into the function and evaluate
f(10)
f(x) = 4(10) + 1 = 40 + 1 = 41
what is the equation for the line in the slope intercept form enter your answer in the box
Answer:
i belive it is y=-4x+5
Step-by-step explanation:
i just did the test
Answer: Y-4+5 Is the answer
Step-by-step explanation:
Ruben put an empty cup underneath a leaking faucet. After 1-1/2 hours, Ruben had collected 1/4 cup. What is the rate, in cups per hour, at which the water is leaking from the faucet?
Find
The value of x pls I need help
Answer:
x= 30
Step-by-step explanation:
Consider the line y = - 4x +3,
Find the equation of the line that is parallel to this line and passes through the point (2, -3).
Answer:
y = -4x + 5 {slope-intercept form}Step-by-step explanation:
y=m₁x+b₁ ║ y=m₂x+b₂ ⇔ m₁ = m₂
{Two lines are parallel if their slopes are equal}
y = - 4x + 3 ⇒ m₁ = -4 ⇒ m₂ = -4
The point-slope form of the equation of a line it's y - y₁ = m(x - x₁), where m is the slope and (x₁, y₁) is the point the line passing through.
m = -4
(2, -3) ⇒ x₁ = 2, y₁ = -3
point-slope form:
y - (-3) = -4(x - 2)
y + 3 = -4x + 8 {subtact 3 from both sides}
y = -4x + 5 ← slope-intercept form
4 months to 8 years in ratio
Answer:
4:96
Step-by-step explanation:
It has to be the same kind of thing so...
1 year is 12 months
8 * 12 = 96
Answer:
4 months : 8 years
reduced...
1 month : 2 years
Step-by-step explanation:
plz answer asap I rlly need help
Answer:
-8/10, -3/16, 3/16
Step-by-step explanation:
Subtract -7n + 2 from 2n - 1.
A. -9n + 3
B. -5n + 1
C. 9n - 3
D. 9n + 1
Answer:
C) 9n - 3
Step-by-step explanation:
make an expression
2n - 1 - (-7n + 2)
open the parenthesis
2n - 1 + 7n - 2
combine like terms
9n - 3
What’s the solution for 6x =36
Answer:
in this equation x would equal 6. because 6*6=36
please just Write the answer of the questions <3
Answer:
d). 6p²+p-2 f).k²+8k+16
Please Help asap!!!
Colin invests £5000 into his bank account.
He receives 10% per year simple interest.
How much will Colin have after 3 years?
Give your answer to the nearest penny where appropriate.
Answer:
Step-by-step explanation:
1500
Answer:
13500
Step-by-step explanation:
PLEASE HELP ME!!!!
The graph below shows the price of different numbers of cans of beans at a store:
The graph below shows the price of different numbers of cans of beans at a store:
Which equation can be used to determine p, the cost of b cans of beans? (5 points)
p = 9.50 + b
p = 9.50b
b = 9.50 + p
b = 9.50p
Which equation can be used to determine p, the cost of b cans of beans? (5 points)
p = 9.50 + b
p = 9.50b
b = 9.50 + p
b = 9.50p
Answer:
a
Step-by-step explanation:
I need help with this
Answer:
A is the correct answer mate
At her restaurant .Yolanda open 285 cans of tomato sauce .She need to use 4 can of for one pan of lasagna how many pans of lasagna could yolanda make if she uses all if she all the cans what is the answer in a mixed numder
Answer:
71 1/4 pans of lasagna
Step-by-step explanation:
4 cans of tomato sauce = 1 pan of lasagna
285 cans of tomato sauce = x pan of lasagna
4 = 1
285 = x
Cross product
4*x = 285*1
4x = 285
x = 285/4
x = 71 1/4 pans of lasagna
What is the length for this question?
Answer:
I believe it would be 3.5
Step-by-step explanation:
2 is half of 4, the measurement for that same side on the connected triangle, by that logic, x would be half of 7.
7 ÷ 2 = 3.5
Answer:
i think it is 9
Step-by-step explanation:
.
Jane’s class gave examples of absolute value in distances traveled. Which example
demonstrates the greatest distance traveled?
Answer:
C
Step-by-step explanation:
Since we care about distance traveled, it doesn't matter if someone goes high or long or whatever -- we just care about the base number. Finding the absolute value of these:
A = 8
B =10
C = 12
D = 7
12 is the highest, C is our answer
How do you write 58.84% as a decimal?
Answer:When you ask, "What is 58.84 as a decimal?", we assume you want to know what 58.84 percent is as a decimal. In other words, 58.84 percent converted to decimal.
First, we will tell you why it is useful to know 58.84 as a decimal.
Normally, to calculate 58.84 percent, you would multiply a number by 58.84 percent and then you would take the product of that and divide it by 100 to get the answer.
Instead, you can simply multiply a number by 58.84 as a decimal to get the answer.
58.84 ÷ 100 = 0.5884
Step-by-step explanation: there you go :)
could you help me with this plz
Answer:
the closest estimate would be 300 boxes
the actual answer is closer to 322 boxes
Step-by-step explanation:
7715/24=321.458
hope this helps have a great day :)
What is the common difference for 9,11,13,15,17,19
Determine the sample space of all of the possible outcomes one of choosing a card numbered 1, 2, 3, or 4, and a blue, green, or a yellow marble. How many outcomes involve a blue marble
Answer:
[tex]Sample\ Space = \{1\ Blue, 1\ Green, 1\ Yellow, 2\ Blue, 2\ Green,[/tex] [tex]2\ Yellow, 3\ Blue, 3\ Green, 3\ Yellow, 4\ Blue, 4\ Green, 4\ Yellow\}[/tex]
The number of occurrence that involve blue is 4
Step-by-step explanation:
Given
[tex]Card\ Number = \{1,2,3,4\}[/tex]
[tex]Marble = \{Blue, Green, Yellow\}[/tex]
Required
Determine the sample space
To determine the sample space, we have to select a card number and write it alongside the marble colours.
i.e.
[tex]Sample\ Space = \{1\ Blue, 1\ Green, 1\ Yellow, 2\ Blue, 2\ Green,[/tex] [tex]2\ Yellow, 3\ Blue, 3\ Green, 3\ Yellow, 4\ Blue, 4\ Green, 4\ Yellow\}[/tex]
Solving (b): Outcomes that involves blue marble
First, we list them out
[tex]Blue = \{1\ Blue, 2\ Blue, 3\ Blue, 4\ Blue}[/tex]
Number of occurrence is 4
Don't Mind the last Question I posted
14-year-old being weird!!!
Answer:
ok then
♧♧♧♧♧♧♤♤○○●○○□□○•☆☆▪︎○○~
In the first event, the eighth graders are running a baton relay race with three other classmates. The team’s top speed for each leg is 56.81 seconds, 59.22 seconds, 57.39 seconds, and 60.11 seconds. Use the information to predict the team’s best time for the race. (2 points)
ABCF is a rectangle.
CDEF is a trapezium.
AE is a straight line.
AB = 9cm, AE = 11cm, DE = 5cm.
The perimeter of rectangle ABCF is 28 cm.
Calculate the area of trapezium CDEF.
The area of trapezium CDEF will be 42 cm².
What is surface area?The quantity of space enclosing a three-dimensional shape's exterior is its surface area.
In other meaning, if we say side square then it is an area of the square but for a cuboid, there are 6 faces so the surface area will be external to all 6 surfaces area.
The perimeter of the rectangle ABCF is 28 cm.
Let's say BC = FA = x
Perimeter = AB + BC + CF + FA
Perimeter = 9 + x + 9 + x
Perimeter = 18 + 2x
2x + 18 = 28
x = 5 cm
Now,
Area of trapezium = (1/2) × sum of parallel distance × perpendicular distance.
Area of trapezium = (1/2) × (5 + 9) × 6
Area of trapezium = 42 cm²
Hence "The area of trapezium CDEF will be 42 cm²".
To learn more about surface area,
https://brainly.com/question/2835293
#SPJ1
Simplify the expression. Write your answer using an improper fraction
with no spaces.
Answer: 59/3k+14
Step-by-step explanation:
please help me with this
answer choice
This system has infinitely many solutions.
This system has exactly one solution.
This system has no solution.
(5, –28) and (0, 0)
Answer:
the answer is the first one hope this helps
Step-by-step explanation:
Solve the system of equations: *
y = 2x + 3
4x - 2y = 6
One solution: (2,3)
One solution: (3, 2)
No solution
Infinite Solutions
Answer:
No solution
Step-by-step explanation:
Maddox McDonald A caterpillar moves across the grass at a rate of 4 2/3 feet every 7 minutes. How fast does the caterpillar move in feet per minute? 1 3
Answer: 2/3 feet per minute
Step-by-step explanation:
From the question, we are informed that a caterpillar moves across the grass at a rate of 4 2/3 feet every 7 minutes.
The rate at which the caterpillar move in feet per minute will be:
= 4 2/3 ÷ 7
= 14/3 ÷ 7
= 14/3 × 1/7
= 14/21
= 2/3 feet per minute