Answer:
C. (5.097, 7.404)
Step-by-step explanation:
EDGE 2020
The 90% confidence interval for the true mean amount of time teenagers from this town watch sports is (5.097, 7.404).
What is Statistics?Statistics is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data.
The formula for the confidence interval is:
CI = x ± tα/2 × (s/√n)
where x is the sample mean,
s is the sample standard deviation,
n is the sample size, and
tα/2 is the t-value with (n-1) degrees of freedom and a confidence level of 90%.
From data (x) is 6.25 hours and
s= 4.33 hours.
We also know the sample size (n) is 40.
To find the t-value with (n-1) degrees of freedom and a confidence level of 90%, we can use a t-table.
For 39 degrees of freedom and a confidence level of 90%
Let us find that the t-value is 1.684.
Substituting the values we have into the formula, we get:
CI = 6.25 ± 1.684 × (4.33/√40)
CI = (5.097, 7.404)
Therefore, the 90% confidence interval for the true mean amount of time teenagers from this town watch sports is (5.097, 7.404).
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Tam thinking of two numbers. The first number is 1 more
than twice the second number.
The sum of the two numbers is 25.
What are my two numbers?
Answer:
First number is x
Second number is y
Step-by-step explanation:
x = 2y + 1
x + y = 25
(2y + 1) + y = 25
3y = 24
y=24/3
y = 8
x = 2(8) + 1
x = 16+1
x=17
Hope this helps!!
Write the equation for the larger circle shown in the figure.
Write the equation for the smaller circle shown in the figure.
Answer:
See below for answers
Step-by-step explanation:
Given equation of the horizontal ellipse: [tex]\frac{x^{2}}{64}+\frac{y^{2}}{16}=1[/tex]
Standard form: [tex]\frac{x^{2}}{a^{2} }+\frac{y^{2}}{b^{2} }=1[/tex]
Values of a and b: [tex]\frac{x^{2}}{8^{2} }+\frac{y^{2}}{4^{2} }=1[/tex]
Therefore, the radius of the bigger circle is a=r=8 (half the length of the major axis) and the radius of the smaller circle is b=r=4 (half the length of the minor axis).
Given the equation for a circle is [tex](x-h)^2+(y-k)^2=r^2[/tex], then:
The equation for the larger circle is [tex]x^{2} +y^{2} =8^{2}[/tex]
The equation for the smaller circle is [tex]x^{2} +y^{2} =4^{2}[/tex]
Help please! No links!
For the following box plot, determine whether the given numbers would be considered outliers.
(Use the "IQR X 1.5" method.)
A. A height of 61 in.
B. A height of 69 in.
C. A height of 74 in.
D. None of these would be considered outliers.
Answer:
D option is your answer bro
Explain how to solve this.
Answer:
c=74
Step-by-step explanation:
48+58=106
180-106=74
Answer:
D is 122 A is 58 B is 48 C is 74
Step-by-step explanation:
Stella said, "The opposite of 4 is -4. The opposite of 1 is - .
I think the opposite of a number is always negative."
Stella's claim is NOT true. Give an example of a number whose
opposite is NOT a negative number.
Answer:
Step-by-step explanation:
the number 0 doesn't have an "opposite"
A square photo has a side length of 0.17 foot. The photo is enlarged by doubling the dimensions. Then it is enlarged again by tripling the new dimensions.
Calculate the side length of the enlarged picture
Answer:
Hence, final picture will have a side length of 1.02 foot
Step-by-step explanation:
Side length of square photo, s = 0.17
Original dimension = (0.17 by 0.17)
Enlarged photo = double the original dimension:
2 * (0.17 * 0.17)
(0.34 * 0.34)
Second enlargement = Tripling the new dimension:
3 * (0.34 * 0.34)
(1.02 * 1.02)
Hence, final enlarged dimension = (1.02 * 1.02)
Hence, final picture will have a side length of 1.02 foot
Jay went on a diet and lost 5 pounds each month. Find Jay's net weight change in 6 months.
Answer:
a 30 pound weight change in 1 month
Step-by-step explanation:
5 pounds
--------------- times 6 months results in a 30 pound weight change in 1 month
1 month
A piece of fabric is for 1/6 yards long if 2 1/4 yards are cut off The Yards remain I'll see you
Answer:
2 1/12 yds remain
Step-by-step explanation:
1. You first change the denominators, so then the fractions will be alike. 2 1/4-1/6
2. Find the LCD or Least Common Denominator. 12 can go into and it is alike, so 2 3/12-2/12
3. Now we can find the answer!
So the answer is 2 1/12
Please mark me brainliest!
What is the coefficient of the term of degree 1 in the polynomial?
2x^8 - 5x^2 + 3x+ 4
Answer:
3
Step-by-step explanation:
The term with a degree of 1 is 3x. The coefficient of that term is 3.
PLS HELP NOBODY WILL HELP ME JUST SPAM ANSWERS I WANNA CRY JUST PLS ANYONE? ILL DEFINETLY GIVE BRAINLIEST : (
Just think about this. 35 + ( 20 * y ) I'm not really sure but this is the best I can do.
please answer quickly. thanks in advance.
Answer:
KM=60°
Step-by-step explanation:
The average of arc LN and arc KM is equal to 110.
[tex]\frac{160+KM}{2} =110[/tex]
160+KM=220
KM=60
10) An employee at a magazine company calls existing customers to renew
their subscriptions. For existing customers, employees earn 3 points for
renewing a subscription and earn-2 points for not renewing a subscription
After an hour, an employee renews 4 existing subscriptions and does not
renew 7 existing subscriptions. Which of the following is the expression
that represents this situation? *
O A 4(3) +-7(2)
O B 4(-2) + 7(3)
O C4(3) + 7(-2)
O D3(4) + 2(-7)
Answer:
C
Step-by-step explanation:
since the employee earns 3 points for every renewal and he renews 4 you must multiply those together. then you need to add the loss of points (-2) times the number of nonrenewal customers (7).
In which number does the digit 2 have a value that is ten times as great as the value of the digit 2 in the number 135,284?
PLEASE HELP!
Answer:First and foremost, we should note that the value of the digit 2 in the number 135,284 is (200). Therefore, the value that is ten times as great as the value of the digit 2 in the number 135,284 would be:
= 10 × 200
= 2000
Therefore, the 2 must be in the thousands place. This can be seen in numbers such as:
172748.
Step-by-step explanation:YW:)
Please help me with this question it contains angles and measurements
Answer:
m∠ONP = 43*
m∠LNO = 137*
m∠MNP = 137*
Step-by-step explanation:
Each line segment is a straight line meaning they are each worth 180°, so if you take 43° from 180° you're eft with 137° which is what ∠LNO and ∠MNP are equal to. ∠ONP is 43° since it is a vertical angle to ∠MNL which is also 43°.
plss help mee
Ethan drew the diagram below with the points labeled as shown.
Which point shows where the perpendicular lines meet?
A. Point W
B. Point X
C. Point Y
D. Point Z
Answer:
B. Point X
Step-by-step explanation:
Perpendicular Lines meet at a 90° angle.
Help me pls TwT, I’m terrible at math
Answer:
The answer is 49
Step-by-step explanation:
Rate of change= (f(b)-f(a))/(b-a)
a = 3 and b = 5
Rate of change = (125-27)/(5-3)
= 49
someone help me with this I would really appreciate it !
Answer:
V = 126 [tex]mi^{3}[/tex]
Step-by-step explanation:
Volume of a pyramid is V = [tex]\frac{lwh}{3}[/tex]
l = length
w = width
h = height
width is 6 mi
length is 7 mi
height is 9 mi
V = [tex]\frac{6*7*9}{3}[/tex]
V = 126 [tex]mi^{3}[/tex]
Which expression is a factor of 9,2- 4r + 1? F3r-1 Gr-1 H 9r - 1 I J There are no real factors.
Answer:
use photomath bestie
Identify the a, b, and c of the following quadratic: −3x2+2x−15
Answer:
a = -3
b = 2
c = -15
Step-by-step explanation:
What is her average rate of change, in miles per hour, during the interval of 0.75 to 1.00
Answer:
2
Step-by-step explanation:
A jar contains 4 blue marbles, 6 green marbles, and 10 white marbles. If a marble is drawn from the jar at random, what is the probability that this marble is green? (In Percent)
Answer: 1/3 or 33%
Step-by-step explanation:
There are 20 total marbles, 6 are green. 20 divided by 6 is 3.333e3
Please help! What's the difference between the two expressions? (3/7x+9)-(2/7x-3)
PLEASE HELP ME
GIVING BRAINLIEST
Answer:24
Step-by-step explanation:
im need more help besties
I’m so d*mb lol
anyways giving brainliest
:)
Answer: 1
Step-by-step explanation: i might be wrong most likely i am because im dmb to
Determine which translations would map Figure K into Figure L.
Answer:
Right; 5 Units
Down; 3 Units
Step-by-step explanation:
Self explanitory, please correct me if I made a typo, mistake in answer, etc.
Answer:
right 5 units and down 3
Step-by-step explanation:
just take a point and count how many spaces it goes moving it to its corresponding point on the new image
(6^-8)^-3, 81^7 • 3^-3/9^7, 8^-5/8^7, 9^-4• 9^6. Use the Law of exponents to simplify. Do not use negative exponents in your answer.
pls people my brother needs this ik its not for me but still pls.
Answer:
hey becca did u get yur account thing fixed, ily
Step-by-step explanation:
You lip a coin 20 times. Predict about how many times would you expect to flips
heads (P heads)?
about
times
10th grade level LT1
Answer:
? = 3.Hope this will help you.
Find the volume of the rectangular prism that has a width of 3 cm, a length of 8cm, and a hight of 7cm
Answer:
V = 168 cm^3
Step-by-step explanation:
L length - 8cm
W width - 3 cm
H height - 7 cm
V = w h l (Right rectangular prism)