Answer:
Explanation:
The confidence interval for variance at 5% is (62.3, 99.7).
To calculate the confidence interval, the degrees of freedom (df) needs to be calculated first. This is computed as df = n - 1, where n is the sample size. In this case, df = 51 - 1 = 50.
The critical value for a 95% confidence interval is then calculated using the chi-square distribution with 50 degrees of freedom. This value is 68.25.
The upper and lower bounds of the confidence interval are then calculated as:
Lower bound = sample variance / chi-square critical value = 81 / 68.25 = 1.19
Upper bound = sample variance * chi-square critical value = 81 * 68.25 = 5.51
The confidence interval for variance at 5% is therefore (1.19, 5.51), or (62.3, 99.7) rounded to the nearest whole number.
3.There are 4 marbles—red (R), blue (B), green (G), yellow (Y) — in a bag.
We randomly draw marbles without replacement from the bag.
a) What is the probability that the first drawing is red and the second
drawing is yellow?
Answer: 25% I think ot is right.
Home work 13th 2013
Topic 3 Materials
Student's Bool
3.2 Properties
materials
Strongest or weakest?
1 Before you begin, predict which material you think
will be the strongest and which will be the weakest.
2 How many weights did you put in each bag
before the material broke?
The term "elements" refers to compounds that cannot be broken down chemically. Both compounds and elements can be used to describe a pure substance or a material.
What are the 4 types of materials?Materials can be divided into four major categories: composites, metals, polymers, and ceramics. Metals, ceramics, polymers, composites, and semiconductors are just a few examples of the materials that can be utilized to create biomaterials . Metals, polymers, and ceramics have traditionally been considered the three main kinds of materials. Steel, fabric, and ceramics are among examples. Typically, the origins, traits, and uses of these classes are very diverse.
But as the sampling below shows, some materials score quite strongly in a number of important factors. Trees and other woody plants have wood as a structural tissue in their stems and roots. It is made of cellulose fibers, which are strong in tension, encased in a lignin matrix, which resists compression. It is an organic substance. Brittle is an adjective. Hard and readily breakable, brittle material or objects are difficult to work with.
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9. 2YK has in issue 9% debentures which are redeemable in 4 year's time at £100 nominal. The current market price is £ 105 ex interest. Estimate the cost of debt given a corporation tax rate of 25% and no time de lay in tax relief.
The price on the open market is £105 (interest excluded). Determine the debt's cost while assuming a 25% corporate tax rate and a prompt tax relief.
What is determining synonym?
The going rate is £105 before interest. Calculate the cost of debt using a 25% corporate tax rate and a no-delay tax relief scenario. Determine has a number of popular synonyms, including decide, resolve, rule, and settle. All of these phrases refer to "coming to or causing to come to a conclusion," but the word "determine" refers to settling on something's identity, character, scope, or direction. identified the issue's root source.
Using the word "determine" in a sentence. She was unable to discern whether or not she had won this round. She would choose the case with the greatest potential for success.
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what's Demand and supply
Answer:
Explanation:
Demand and supply are the two fundamental forces that determine the price and quantity of a good or service in a market economy.
Demand refers to the quantity of a good or service that consumers are willing and able to purchase at a given price. As the price of a good or service increases, the quantity demanded typically decreases, and as the price decreases, the quantity demanded typically increases. This relationship between price and quantity demanded is known as the law of demand.
Supply, on the other hand, refers to the quantity of a good or service that producers are willing and able to produce and sell at a given price. As the price of a good or service increases, the quantity supplied typically increases, and as the price decreases, the quantity supplied typically decreases. This relationship between price and quantity supplied is known as the law of supply.
The point where the quantity demanded and the quantity supplied are equal is called the equilibrium point. At this point, the market is in balance and there is no tendency for prices to change. However, if the demand is greater than the supply, the price will tend to rise, and if the supply is greater than the demand, the price will tend to fall.
What is Dante's opinion of Pope Nicholas?
Answer:
I rly don't know.. I hope someone gives you an answer to your question....
Explanation:
Sry
Nationally 38 percent of fourth graders cannot readban age
Answer:
Nationally, 38% of fourth-graders cannot read an age-appropriate book. The data shows the number of children, by age, identified as learning disabled under special education. Most of these children have reading problems that should be identified and corrected before third grade.
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McKenna Michaels is a 30-year-old single taxpayer who changed jobs during the year. When she left her first job, she decided to take a total distribution from the 401(k) plan she had established with her former employer. This was not a COVID-19-related distribution, and she did not qualify for any hardship or disaster-related exceptions. She used the proceeds to make a down payment on a new car.
Because McKenna did not meet the requirements to take a COVID-19-related distribution and she did not qualify for any other exceptions, the distribution is taxable and subject to a 10% early withdrawal penalty.
Non-qualified distribution from a 401(k) planThe 10% penalty applies to any amount distributed before the taxpayer reaches age 59 1/2.Unless McKenna meets certain criteria to qualify for an exception, she must report the distribution as taxable income on her tax return, and pay the 10% penalty.McKenna Michaels is subject to taxes on her 401(k) distribution. She must report the distribution as income on her federal tax return. She will also owe a 10% early withdrawal penalty on the taxable portion of the distribution.The taxable portion of the distribution is calculated by subtracting any non-taxable amounts, such as after-tax contributions, from the total distribution amount. The taxable portion is then multiplied by her tax rate to determine the amount of taxes due. She must also pay state taxes on the distribution, depending on her state of residence. In addition, McKenna must report the distribution on Form 8606. This form records the non-taxable portion of the distribution, which is the basis for determining any taxes due on future distributions.Finally, McKenna must also keep track of her cost basis. This is the amount of the distribution that was contributed by her after-tax contributions. She will need this information in order to accurately calculate the taxes due on any future distributions she makes from her 401(k).To learn more about non-qualified distribution from a 401(k) plan refer to:
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what is the vertex of x^2 + 4x - 12
Answer:
[tex](-2, -16)\\[/tex]
Explanation:
The vertex of a quadratic function which gets plotted as a parabola is either the minimum or maximum (x, y) value of that function.
The following rule applies to finding the x value of the vertex
[tex]\mathrm{The\:vertex\:of\:an\:up-down\:facing\:parabola\:of\:the\:form}\:\\y=ax^2+bx+c\:\mathrm{is}\:x_v=-\dfrac{b}{2a}[/tex]
The equation is
[tex]y=x^2+4x-12[/tex]
[tex]\textrm {Here }\\a = 1, b = 4, c= -12\\\\[/tex]
[tex]So\; x_v, \textrm{ the x value of the vertex } = -\dfrac{4}{2\cdot \:1} = -2\\\\\textrm {Plug this value of x into the equation to find the y-value of the vertex}\\[/tex]
[tex]y_v=\left(-2\right)^2+4\left(-2\right)-12\\\\\\y_v = 4 -8 - 12 = -16\\\\[/tex]
[tex]\mathrm{Therefore\:the\:parabola\:vertex\:is}\\(-2, -16)[/tex]
