Using the confidence interval concept, an interval between 10 and 14.8 is likely to contain the true mean number of books read in the previous year by the population.
What is the interpretation of a x% confidence interval?It means that it is x% likely that the population parameter(mean/proportion/standard deviation) is between a and b, which are the bounds of the confidence interval.
The bounds of the confidence interval are given by the estimate plus/minus the margin of error.
For this problem, we have that:
The estimate is of 12.4 books.The margin of error is of 2.4 books.Hence the bounds are given by:
12.4 - 2.4 = 10 books.12.4 + 2.4 = 14.8 books.An interval between 10 and 14.8 is likely to contain the true mean number of books read in the previous year by the population.
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When a number cannot be divided evenly, the amount left over is called the
Answer:
The remainder.
Step-by-step explanation:
I hope this helps.
i need help with this ^
12 x^{5} y^{7} and 7 x^{2} y^{9}
Answer:
19x^7y^16
Step-by-step explanation:
And usually means to add, so combine your like terms:
12x^5y^7 + 7x^2y^9
12 + 7 = 19
x^5 + x^2 = x^7
y^7 + y^9 = y^16
Answer:
Step-by-step explanation:
(12x⁵ y⁷) * (7x²y⁹) = (12*7) * (x⁽⁵⁺²⁾ ) (y⁽⁷⁺⁹⁾)
= 84x⁷y¹⁶
In exponents multiplication, if base are same, then add the powers.
xᵃ * xᵇ = x⁽ᵃ⁺ᵇ⁾
HELP PLEASE! E lies in the interior of
m
m
m
Show Your Work
6 X 9 =
6 X (5 + 4)
6 X 9 = (6 X 5) + (6 X 4)
6 X 9 =
6 X 9 =
54
Answer:
54
Step-by-step explanation:
9(6)=54
6(9)=54
54=(30)+(24) 54=54 so it is true
9x6=54
What percentage of the total variation in test scores is not explained by the linear relationship between years of study and test scores?
Answer:
Check explanation section.
Step-by-step explanation:
So, we have the following parameters or information from the question above:
=> that the regression equation is Score = 31.55 + 10.90 Years.
So, the regression equation is in the form of mx + c.
Thus, the coefficient that is constant = 31.55 and the coefficient that shows or represents the years = 10.90.
=> Also, we have the value which is most important in this question that is the coefficient of Determination which is represented as R-sq and has the value of 83%.
The percentage of the total variation in test scores is NOT explained by the linear relationship between years of study and test scores = 100% - 83% = 17%.
For the percentage of the total variation in test scores is explained by the linear relationship between years of study and test scores = R- sq = 83%.
2x - 3y = 12
4x + 3y = 24
x = y =
Answer:
(X,Y) = (6,0)
Step-by-step explanation:
Please also explain how you got your answer Ill give barinliest to the person who gives the Clearest explanation
Answer:
A) [tex]0.75, \frac{3}{5}[/tex]
Step-by-step explanation:
75% can be written in fraction and decimal form.
75% = [tex]\frac{75}{100}[/tex] = [tex]\frac{3}{4}[/tex] (in its simplest form)
75% = [tex]75\div100=0.75[/tex]
∴75% is equivalent to [tex]\frac{3}{4}[/tex] and [tex]0.75[/tex], and Option A is correct.
Which expression is equivalent to this expression? 4a + (-6b) – 3a + 2b
A. a + 4b
В.a – 4b
C. 7a - 8b
D. 7a - 4b
Answer:
B
Step-by-step explanation:
1/2 X 2/3 multiply fraction
Answer:
2/6 or 1/3 simplified
Step-by-step explanation:
First multiply the numerators which is the top number of both fractions, which for this equation is 1 and 2 so 1x2=2. So your final fraction would have a numerator of 2 unless simplified. Next, multiply the denominators which are the bottom numbers of the fraction for this one its 2 and 3 so 2x3=6. Your final fraction is 2/6, if simplified 1/3.
Solve for n:
24 = 3n - 15
Answer:
N = 13
Step-by-step explanation:
Move all terms containing n to the left, all other terms to the right.
Add '-3n' to each side of the equation.
24 + -3n = -15 + 3n + -3n
Combine like terms: 3n + -3n = 0
24 + -3n = -15 + 0
24 + -3n = -15
Add '-24' to each side of the equation.
24 + -24 + -3n = -15 + -24
Combine like terms: 24 + -24 = 0
0 + -3n = -15 + -24
-3n = -15 + -24
Combine like terms: -15 + -24 = -39
-3n = -39
Divide each side by '-3'.
n = 13
Simplifying
n = 13
The price of a pair of shoes decreased
from $69.99 to $19.95. What was the
percent decrease in the price of the
shoes?
Answer:
About 71.5 percent
Step-by-step explanation:
Hope this helps! If you have any questions please comment.
At 5 P.M., the total snowfall is 3 centimeters. At 11 P.M., the total snowfall is 14 centimeters. What is the mean hourly snowfall? Write your answer in simplest form as a fraction or mixed number.
Help me out
Answer:
1 hour and 30min
Step-by-step explanation:
11-5=6 then divide 6 to 5 and you get 1.2 which is 1 hour and 30min
2.5 cm of snow fall on average each hour.
What is average?
The average formula is also known as the arithmetic mean, which is the ratio of the sum of all given observations to the total number of observations. Thus, using the average formula, the arithmetic mean for any sample of data can be calculated.
The average formula for a given set of data or observations can be expressed as:
Average Formula:
Average = (Sum of Observations) ÷ (Total Numbers of Observations)
Given:
The number of millimeters that fell throughout the course of the period divided by the number of hours is the mean hourly snowfall.
At 5:00 PM,
There are 4 hours from 6 PM to 9 PM.
So, there is 2 millimeters of snowfall as of 5 p.m.
and, 12 millimeters of snowfall as of 9 p.m.
Then, the accumulation of snow rises by
=12-2
= 10 cm in those four hours.
Thus, on an average the snow fall at rate
= 10/4
= 2.5
Hence, 2.5 cm of snow fall on average each hour.
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Yamisley 4 friends decided to bring food if each of them brought 4 slices of pizza and 3 bags of chips how many slices of pizza do they have in total
Answer:
16 slices and 12 bags
Step-by-step explanation:
a root beer factory produces 132,554 cases in 100 days how many does the factory produce in 1 day
Answer:
13256
Step-by-step explanation:
132554÷100=1325.54
rounding it (since it cannot produce 0.54 of a case) =13256cases
HELLPPPPPPPP PLEASSSEEE :)
Answers for Row 1: 2, -6, -1
Answers for Row 2: 0, 5, 0
========================================
Explanation:
When we add matrices, we must first make sure they are the same dimensions. In this case, both are 2x3 matrices, so we can add them.
To add matrices, you add the corresponding components.
For example, in the first row, first column, we have B+A = -2+4 = 2. So the value 2 will go in the first row, first column, of the answer matrix.
The other elements are handled in a similar fashion.
CAN YOU PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELP (33 points)
Yoshiro has a new puppy. She decides to create an enclosure for her puppy in her backyard. The enclosure is in the shape of a hexagon, with one pair of opposite sides running the same distance along the length of two parallel flowerbeds. A sketch of the enclosure is shown below.
QUESTION: What do you know and what do you see?
Answer:
So, I know that we will have to find the Area of the "Shape" And I see a *Unlabeled/Unknown* Shape that we have to find the answer of/to.
Step-by-step explanation:
To find the volume, you multiply length times width times height, which is 3x1x2, which equals six. So the volume of the fish tank is 6 cubic feet. Volume is also how loud a sound is.
To find the area of a rectangle, multiply its height by its width. For a square you only need to find the length of one of the sides (as each side is the same length) and then multiply this by itself to find the area.
Maybe the Definitions Can help, Have a nice day
find the slope of the line that passes through (10,7) and (8,17)
-5 because there are 5 points in between those points if it were to be on a graph.
If ΔOCD ≅ ΔJAL, then which of the following statements are true? Select True or False for each statement.
Answer:
true
true
false
true
Step-by-step explanation:
A building has a shadow that is 18 feet long. Will is 5 feet long, and he is standing next to the building. Will has a shadow that is 3 feet long
Answer:
:The height of the building is 30ft
Step-by-step explanation:
please helpppp!!!!!!
Answer:
genotypes
Step-by-step explanation:
I took a class of this before
If data set A has a larger standard deviation than data set B data set A is lees spread out than data set B
A. True
B. False
Answer:
false
Step-by-step explanation:
Simplify:
x2 +5x-14
x2+10x+21
Answer:
4x + 15x + 7
Step-by-step explanation:
x2 + x2 = 4x
5x + 10x = 15x
-14 + 21 = 7
Have you ever been to a carnival? What was it like?
Answer:
Fun! Cotton candy is my favorite!
Answer:
yes it was fun
Step-by-step explanation:
i dont know if there are answer options but it was fun and had really good food. it had long lines for the rides but they were fun. there was a haunted mansion which was my favorite and then the fireball was my fav ride.it had good funnel cake and was a fun time with friends. hope this helps
Sharla’s recipe for 4 servings of stew has 2 potatoes and 4 celery sticks. How many potatoes and celery sticks does she need to make 6 servings?
Answer:
4 servings : 2 potatoes and 4 celery sticks. Find the number of potatoes and celery sticks in 6 servings. 6/4 = 1.50 2 potatoes x 1.50 = 3 potatoes 4 celery sticks x 1.50 = 6 celery sticks 6 servings of stew has 3 potatoes and 6 celery sticks. Other way of computing for the 6 servings is getting the number of potatoes and celery sticks per serving.
Step-by-step explanation:
heeeeeeeeeeeelllllllllllllpppppppppppppp
Answer:
Step-by-step explanation:
<1 is congruent with <3, <5, and ,<7 because they are all vertical angels
Glen's monthly gross pay is $4,500. The deductions from his monthly pay include $764.25 for federal income tax,
$344.25 for FICA taxes, $180 for his retirement plan, and $275 for health insurance. Find the percentage of his gross
wages that Glen takes home, to the nearest percent.
A) 3.5%
B)34%
C) 3.4%
D)65%
Answer:
It would be 34%
Step-by-step explanation:
The difference between $4500 and $2936.50 (the total after subtracting his monthly payments) is 34.74%
Answer:
Step-by-step explanation:
65%
Tyler has a baseball bat that weighs 28 ounces. Find this weight in kilograms and in grams. (Note: 1 kilogram ≈ 35 ounces)
Answer:
793.787 grams 0.794 kilograms
Step-by-step explanation:
can't explain hope helps
Im not sure how to answer this question.
u= 5i-2j+3k v= -2i+3k
Find a vector that is in the direction of the vector v , whose magnitude is twice that of vector u
9514 1404 393
Answer:
(-4√494)/13i +(6√494)/13k ≈ -6.8388i +0j +10.2585k
Step-by-step explanation:
To answer this question, you need to know two things:
1) the direction of vector v
2) the magnitude of vector u
__
direction of v
A direction is specified by a "unit vector", one with the proper ratio of components, and a magnitude of 1. It is found from a given vector by dividing that vector by its magnitude.
The unit vector in the v direction is ...
v/|v| = (-2i +3k)/(√((-2)² +3²) = (-2i +3k)/√13
__
magnitude of u
The magnitude of vector u is ...
|u| = √(5² +(-2)² +3²) = √38
__
Then the desired vector is ...
(2|u|)(v/|v|) = 2√38(-2i+3k)/√13 = (-4√494)/13i +(6√494)/13k
_____
Additional comment
We have chosen to "rationalize the denominator" by writing √(38/13) as (√494)/13.
please help me I am stuck its due at 10:30
Answer:
|-12.5| is greater than |11.5|
Step-by-step explanation:
because the brackets thingys will remove the neagtive sign so it would just be 12.5 And 12.5 is greater than 11.5 right?
