EXTRA CREDIT: Complete the truth table. Choices are on the next page. (3 points)
Hurry please
Answers
Answer:
Step-by-step explanation:
Related Questions
given a population mean of 27.1 with a standard deviation of 8.4 and a sample size of 10, answer these questions.
part A: what is the standard deviation of the sampling distribution of x hat? show your work.
PartB: what does the sample size need to be if you want the standard deviation of the sampling distribution of x hat to be 2.8? show your work.
Answers
Answer:
a) 2.66
b) 9
Step-by-step explanation:
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
part A: what is the standard deviation of the sampling distribution of x hat? show your work.
We have that [tex]\sigma = 8.4, n = 10[/tex]. So
[tex]s = \frac{\sigma}{\sqrt{n}} = \frac{8.4}{\sqrt{10}} = 2.66[/tex]
PartB: what does the sample size need to be if you want the standard deviation of the sampling distribution of x hat to be 2.8?
This is n when [tex]s = 2.8[/tex]. So
[tex]s = \frac{\sigma}{\sqrt{n}}[/tex]
[tex]2.8 = \frac{8.4}{\sqrt{n}}[/tex]
[tex]2.8\sqrt{n} = 8.4[/tex]
[tex]\sqrt{n} = \frac{8.4}{2.8}[/tex]
[tex]\sqrt{n} = 3[/tex]
[tex](\sqrt{n})^2 = 3^2[/tex]
[tex]n = 9[/tex]
Write an equation for the line having a slope of -1/3 and y-intercept is 5
Answers
Answer:
y= -1/3x +5
Step-by-step explanation:
Using the equation y=mx+b
you know m (slope), which is -1/3
you also know your b which is 5
You get y= -1/3x+5
John was adding Rational Numbers. He showed his work below. What was John's error?
Explain to John how to solve it correctly.
Adding Rational Numbers Error.
Answers
Answer:
-5 3/5
Step-by-step explanation:
John's error was in adding the whole number and fractional portions separately, the fractions must be converted to improper fractions with common denominators to be added or subtracted properly so
(-7 4/5) + (2 1/5), convert to improper fractions
-39/5 + 11/5, both fractions have common denominator so we can continue
-39 + 11 = -28, so -39/5 + 11/5 = -28/5, convert back to proper fractions
-28/5 = (-25/5) + (-3/5) = -5 3/5
A nature center has a fish tank in the shape of a rectangular prism the tank is 10 feet long and 8 1/4 feet wide and 6 feet tall The nature center's caretaker filled 4/5 f the tank with water. What was the volume of the water in the tank, in cubic feet? What was the height of the water in the tank? Explain or show your reasoning
Answers
Answer:
They had 20 of them
Step-by-step explanation:
sorry if its wrong
Graph the equation.
y= 5(x + 1)^2– 3
HELP!!!
Answers
Step-by-step explanation:
the answer is in the attachment
The graph of the function y= 5(x + 1)²– 3 is attached accordingly. See the description of the graph below.
The graph of y= 5(x + 1)²– 3The equation y = 5(x + 1)² - 3 represents a quadratic function.
The graph is a parabola with its vertex at (-1, -3). It opens upward since the coefficient of the squared term (x²) is positive.
The graph is vertically stretched by a factor of 5 compared to the standard quadratic function.
The x-coordinate of the vertex is -1, indicating a horizontal shift of 1 unit to the left from the standard quadratic.
Learn more about graphs at:
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Sunita is buying some fabric. The total yardage of the fabrics is about 13 yards. Which sum is about 13?
Answers
Answer:
13*3=39ft (if thats what ur looking for)
Step-by-step explanation:
PLEASE HELP ITS URGENT
DONT GUESS
WILL MARK BRAINLIEST
Answers
Answer:
A) 1/2(3)(2.6)=3.9
B) 1/2(3)(5)=7.5
C) 7.5x3=22.5
D) 22.5+3.9=26.4
Step-by-step explanation:
A) 1/2(3)(2.6)=3.9
B) 1/2(3)(5)=7.5
C) 7.5x3=22.5
D) 22.5+3.9=26.4
can u guys help i really need to be good at math because i dont want t go to a tewter tomorrow
Answers
Answer: Your answer is (C) 6/14
Step-by-step explanation: Have a brilliant day mate - Lily ^-^
PLEASE HELP ASAP 20 POINTS
The newly proposed city park is rectangle shaped. Blake drew a scale drawing of the park and used a scale of 1 cm: 20 ft
1) If the width on the scale drawing of the city park is 25 centimeters, what is the actual width of the park?
A) 250 feet
B) 400 feet
C)500 feet
D)750 feet
2) If the width on the scale drawing of the city park is 25 centimeters and the length is 30 centimeters, what is the actual area of the park?
A) 75,000 ft^2
B) 110,000 ft^2
C) 300,000 ft^2
D) 750,000 ft^2
Answers
Answer:
1.A
2.B
Step-by-step explanation:
I hope it helps...........
Answer:
1:A
2:B
Step-by-step explanation:WELCOMEEEE HAVE A GREAT DAY :)))((()()(
A large jet uses 7.500 gallons of fuel to fly 1,500 miles what is the unit rate used by the vehicle
Answers
We know that they are using 7500 gallons of fuel for 1500 miles
we can do 7500 / 1500 = 5
Meaning that for every 5 gallons of fuel they travel 1 mile
Collectively, what are the interest costs and other fees for using a credit card called? A. balance B. credit line C. finance charge Reset Next
Answers
The correct answer is C. Finance charge
Explanation:
A credit card is a service offered by financial entities such as banks that allows customers to buy goods and pay them later. This implies the customer does not immediately for goods but pays for these after a specific time. The use of this benefit implies related costs such as fees for the use of the credit card, and interest costs (money charged for borrowing the money from the bank), which are known as finance charge or the money charged for the benefit of using credit. According to this, the correct answer is C.
The number 18 is which percentage of 15
Answers
Answer:
120%
Step-by-step explanation:
Answer:
120
Step-by-step explanation:
18 dived by 15 times 100.
Chris uses an online store that sells songs for $1 and movies for $6. He used all of
his $20 allowance to buy 10 items. How many songs and how many movies did he
buy?*
Your answer
Answers
Answer:
8 songs and 2 movies
Step-by-step explanation:
THis is because 1x8=8 and then 2x6=12 . Then 12+8=20 and he spent $20.
Step-by-step explanation:
Need an answer:
Graph g(x)=5|x-6|+2
Answers
your vertical intercept is at (0,32)
your domain: (-infinity, infinity)
your range: [2, infinity)
Change 3 5/8 into an improper fraction.
Answers
Answer:
The improper fraction 29/8 is equal to the mixed number 3 5/8.
Step-by-step explanation:
The fractions is solved and the improper fraction is A = 29/8
Given data ,
To change 3 5/8 into an improper fraction, we need to combine the whole number and the fraction part.
The fraction part, 5/8, can be expressed as an improper fraction by multiplying the whole number, 3, by the denominator of the fraction, 8, and then adding the numerator, 5. This gives us:
3 * 8 + 5 = 24 + 5 = 29
The denominator remains the same, so the improper fraction is:
A = 29/8
Therefore , the value of A = 29/8
Hence , 3 5/8 can be expressed as the improper fraction 29/8
To learn more about fractions click :
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One year, the population of a city was 127,000. Several years later it was 129,540. Find the percent increase.
Answers
Answer:
2%
Step-by-step explanation:
Answer: 2%
Step-by-step explanation: Method 1
Express the ending population as a percentage of the starting population:
127000 /129540= 1.02
1.02×100= 102%
Subtract the starting 100% to get the percent increase:
102%−100%= 2%
Find the value of x.
A. 35
B. 10
C. 55
D. 25
Answers
Answer:
A.35
Step-by-step explanation:
trust bro
Answer:D 25
Step-by-step explanation:
A certain insect can beat its wings 180 times per
Answers
y= 180x
Choose all of the statements that are true about AABC.
Answers
y<1/4x+1 y≥ 3x+2 identify one point that is a solution and identify any point that is NOT a solution
Answers
Answer:
(-1,-1) works (5,5) does not
Step-by-step explanation:
y<1/4x+1[tex]\geq[/tex]3x+2
-1<1/4(-1)+1[tex]\geq[/tex]3(-1)+2
-1<-1/4+1[tex]\geq[/tex]-3+2
-1<.75[tex]\geq[/tex]-1
PLS HELP!!!! :))) BDHDHSJWJDJD
Answers
Answer:
Your answer is "H"
Step-by-step explanation:
Kamala spent a total of $4.32 to buy
6 pencils. Each pencil cost the same
amount. What was the cost of each
nencil2
Answers
11 is the quotient of a number y and 6.
Answers
Answer:
y = 66
Step-by-step explanation:
11 = y/6
11*6 = y
66 = y
The bill at a restaurant is $160. You leave a 20% tip. What is your total restaurant bill, including the tip? 20 points!
Answers
Answer:
$192
Step-by-step explanation:
Bill: $160.00
Tip: 20%
To figure out 10%, you need to move the decimal point over to the left one place: $16.00
10%: $16.00
16 times 2= $32.00
160.00+32.00= $192.00
160 20% =32
160+32= 192
what is 4 divided by 3/4?
Answers
Answer:
16/3 or 5.33
Step-by-step explanation:
Cross multiply
4/1 * 3/4
4 * 4 = 16
3 * 1 = 3
Please help me......
Answers
Answer:
<BAC=1/2 <BOC=1/2 X=X/2(INSCRIBED ANGLE IS HALF OF CENTRAL ANGLE)
solve for x please, will give braknliest
Answers
Explanation: Triangles add up to 180. The two bottom points are the same. So you would take 180 and subtract it by 36. That would give you 144. You would then take 144 and divide it by 2, because the two angles are the same and your only trying to find one.
Find the unit rate. 84 miles in 12 days
(Ratio)
Answers
Answer:
84:12
7:1
hope this helps, good luck :)
Answer:
84:12
7:1
divide each by 12
Use the following figure to answer the question.
1
2
If _1 and 2 are equal, then lines /and mare parallel.
True
False
Answers
Answer:
true
Step-by-step explanation:
because angle 1 and 2 can only be equal if the lines are parallel
Socks cost $5 per pair.
The expression 5p
represents the cost in dollars of p pairs of
socks. Why must o be a whole number?
Answers
Answer:
because there is no cents, so its a whole number, and it will help if u put the answer choices
Step-by-step explanation:
Answer:
the whole number is 5 , but I don't understand what the question is ... "if one pair of socks cost 5 dollars, how much would however pairs of socks cost" . is that what the question says ?
Step-by-step explanation: