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Li designed a survey to determine how comfortable students at her middle school are with fractions. There are 600 students in her middle school. The students are equally distributed among grade levels. She selected a sample of 28 students in her first-period class. Which best explains Li’s sample?

The correct answer to this is: Nonrandom and biased   The method of Li’s sampling has a tendency that some elements or portion in the population has no chance of selection. Further, it was not stated which portion of the population she obtained the sample thus we cannot accurately determine …

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A. about 60% of florida residents believe that florida is a nice place to live. suppose that six randomly selected florida residents are interviewed. what is the probability that at least one resident does not think that florida is a nice place to live?

At least 6, means: either 1 and 2 and 3 and 4 and 5 and 6 Probability(that Florida is a nice place to live) = 60% = 0.6If  at least  6 randomly selected like Florida:P(at lest 6 LIKE Florida) = (0.6)⁶ = 0.04665P(at least 6 DON’T LIKE Florida) = 1-0.04665 …

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Samples of size n = 90 are randomly selected from the population of numbers (0 through 9) produced by a random-number generator, and the variance is found for each sample. What is the distribution of the sample variances?

Answer: chi square distribution with df = n-1 Step-by-step explanation: Given that sample of size n=90  are randomly selected from the population of numbers (0 through 9) produced by a random-number generator Since sample size is large and randomness is followed we can assume that the variable follows a normal …

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Read the sentence and answer the question. Nine more pilots were selected in 1962 fourteen were chosen in 1963. Which correctly shows where a semicolon is needed in the sentence? Nine more pilots were selected; in 1962 fourteen were chosen in 1963. Nine more pilots were selected in 1962 fourteen were chosen; in 1963. Nine more pilots were selected in 1962; fourteen were chosen in 1963. Nine more pilots; were selected in 1962 fourteen were chosen in 1963. Description

Read the sentence and answer the question. Nine more pilots were selected in 1962 fourteen were chosen in 1963. Which correctly shows where a semicolon is needed in the sentence? Nine more pilots were selected; in 1962 fourteen were chosen in 1963. Nine more pilots were selected in 1962 fourteen …

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Consider a political discussion group consisting of 9 ​Democrats, 7 ​Republicans, and 3 Independents. Suppose that two group members are randomly​ selected, in​ succession, to attend a political convention. Find the probability of selecting no Democrats

Well, first you would add up how many objects you have to select from 9 democrats + 7 Republicans + 3 Independents = 19 total peopleso then you would put how many people you can have over that numberso since we don’t want any Democrats it would be 10/19 (.52)and …

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The body temperatures of adults are normally distributed with a mean of 98.6° f and a standard deviation of 0.60° f. if 36 adults are randomly selected, find the probability that their mean body temperature is greater than 98.4° f. 0.0228 0.8188 0.9360 0.9772

Here the population standard deviation is 0.60 degree F.  If a sample of 36 adults is randomly selected, that results in a sample standard deviation of 0.60 degree F divided by the square root of 36:  0.10 degree F. The probability in question is the area under the standard normal …

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When campaign workers are canvassing neighborhoods, one of their goals is to identify voters who will support their candidate. sell campaign buttons door to door. determine the income level of a community. find out which candidate voters have selected?

Answer: The correct answer here is to identify voters who will support their candidate. Explanation: Door-to-door campaigning is a process and a method that has been used by a lot of different organizations because it allows for a more personalized and individualized contact so that messages can be conveyed in …

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A dog breeder currently has 9 breeding dogs. 6 of the dogs have exactly 1 littermate, and 3 of the dogs have exactly 2 littermates. if 2 dogs are selected at random, what is the probability that both selected dogs are not littermates?

You need to determine the number of ways in which 30 competitors from 50 can qualify. First, you have to realize that the order is irrelevant, that is: it is the same competitor_1, competitor _2, competitor _3 than competitor_3, competitor_2, competitor_1, or any combination of those three competitors. So, the …

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A math teacher wants to find out the average number of hours his students spend working on their math homework for his class each week. Which group would best represent a sample of the population? the first 30 students who enter the school building one morning 30 students selected from the lunchroom 30 students selected from his class rosters 30 students who stay after school for football practice

You need to determine the number of ways in which 30 competitors from 50 can qualify. First, you have to realize that the order is irrelevant, that is: it is the same competitor_1, competitor _2, competitor _3 than competitor_3, competitor_2, competitor_1, or any combination of those three competitors. So, the …

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Sixty-five percent of men consider themselves knowledgeable football fans. if 12 men are randomly selected, find the probability that exactly four of them will consider themselves knowledgeable fans.

You need to determine the number of ways in which 30 competitors from 50 can qualify. First, you have to realize that the order is irrelevant, that is: it is the same competitor_1, competitor _2, competitor _3 than competitor_3, competitor_2, competitor_1, or any combination of those three competitors. So, the …

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How many permutations of three items can be selected from a group of six?

You need to determine the number of ways in which 30 competitors from 50 can qualify. First, you have to realize that the order is irrelevant, that is: it is the same competitor_1, competitor _2, competitor _3 than competitor_3, competitor_2, competitor_1, or any combination of those three competitors. So, the …

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A bag contains 20 candies: 3 cherry, 4 orange, 7 lemon, and 6 grape. if two candies are selected simultaneously, what is the probability that they are both the same flavor?

You need to determine the number of ways in which 30 competitors from 50 can qualify. First, you have to realize that the order is irrelevant, that is: it is the same competitor_1, competitor _2, competitor _3 than competitor_3, competitor_2, competitor_1, or any combination of those three competitors. So, the …

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Look at the five words you selected to study during this lesson. Use the third one in an original sentence. In a second sentence, explain how you have used this word in your daily life. In a third sentence, explain where you have heard or read this word. Use proper grammar and spelling. Note: You must write your own original sentence to receive points for this question. My word Exhaust

Hey there! Correct answer is D. Comma or Period Inside Rule A. Question mark or exclamation point inside: those are not really necessary. B. Colon or semicolon: not, a semicolon would divide the whole sentence and it would be shorten; a colon would work but after requested, when there is …

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What is the relationship between structure and function in the selected muscle? – Muscle – Human Cardiac – Smooth Muscle – Skeletal Muscle

There are two systems in the human body that are responsible for the coordination between the functions of different systems to achieve the unity of the living organism’s body. These two systems are the nervous system and the endocrine system. The action of the nervous system is fast and takes …

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URGENT A committee of 3 people is to be randomly selected from a group of 5 women and 8 men. What is the probability that the committee will consist only of women? A. 5/143 B. 7/143 C. 28/143 D. 30/143

You need to determine the number of ways in which 30 competitors from 50 can qualify. First, you have to realize that the order is irrelevant, that is: it is the same competitor_1, competitor _2, competitor _3 than competitor_3, competitor_2, competitor_1, or any combination of those three competitors. So, the …

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Urgent I need it for an assignment!!A dog store has 3 female Chihuahuas. 14 of the 25 dogs at the store are not Chihuahuas. What is the probability that a dog selected at random is female, given it is a Chihuahua? A. 3/25 B. 3/14 C. 3/11 D. 11/25

You need to determine the number of ways in which 30 competitors from 50 can qualify. First, you have to realize that the order is irrelevant, that is: it is the same competitor_1, competitor _2, competitor _3 than competitor_3, competitor_2, competitor_1, or any combination of those three competitors. So, the …

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Before writing your theme, you should prepare a rough outline, collect your material, and a topic should be selected A ) correct B) incorrect

Hey there! Correct answer is D. Comma or Period Inside Rule A. Question mark or exclamation point inside: those are not really necessary. B. Colon or semicolon: not, a semicolon would divide the whole sentence and it would be shorten; a colon would work but after requested, when there is …

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Among the contestants in a competition are 3636 women and 2525 men. if 5 winners are randomly? selected, find the probability that they are all? men? round to five decimal places.

You need to determine the number of ways in which 30 competitors from 50 can qualify. First, you have to realize that the order is irrelevant, that is: it is the same competitor_1, competitor _2, competitor _3 than competitor_3, competitor_2, competitor_1, or any combination of those three competitors. So, the …

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Box contains 15 items,4 of which are defective and 11 are good. Two items are selected. What is probability that the first is good and the second defective?

Answer: The answer is (C) Patricia is not correct because both 3 – 4i  and -11+√2i  must be roots. Step-by-step explanation:  Given that  (-11-√2i) , (3 + 4i), and 10 are the roots of the polynomial function f(x) that Patricia is studying. We know that the complex roots of a …

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Source material for research should be selected based on Select one: a. the number of sources assigned by the instructor. b. whether it is encyclopedic and autobiographical. Incorrect c. how recently the material was written and published. d. a variety of credible primary and secondary sources that include information relevant to the topic.

Here are a few pointers; hope this is useful) Ovation-by definition- is show of appreciation from an audience, for a person’s accomplishments or flaw. “Everyone deserves a standing ovation because we all overcometh the world.” A person’s accomplishment could be how they made a positive change in this world, strong …

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The data selected to create a table must include

When making an email for professional purposes, it is important to make one that uses your full name as a username, if possible. However, common names might face difficulties since other people might have already taken the username. In this case, you can abbreviate your name, or include numbers behind …

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In a certain? country, the true probability of a baby being a boy is 0.534. among the next six randomly selected births in the? country, what is the probability that at least one of them is a girl??

The basis to respond this question are: 1) Perpedicular lines form a 90° angle between them. 2) The product of the slopes of two any perpendicular lines is – 1. So, from that basic knowledge you can analyze each option: a.Lines s and t have slopes that are opposite reciprocals. …

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Your parents are always complaining that you do not do enough housework. they say that you should be helping them out because you are only a student and you have a lot more spare time than them. the number of hours per week that your parents work has a mean of 48.69 hours and a standard deviation of 2.90 hours. you believe that the number of hours per week that you have to study for university has a mean of 48.17 hours and a standard deviation of 2.60 hours. you plan to record the number of hours that you study each week over 15 randomly selected weeks throughout the year. calculate the probability that the mean of your sample is greater than the mean number of hours per week worked by your parents. assume that the population of study hours per week is normally distributed. give your answer as a decimal to 4 decimal places. probability

You need to determine the number of ways in which 30 competitors from 50 can qualify. First, you have to realize that the order is irrelevant, that is: it is the same competitor_1, competitor _2, competitor _3 than competitor_3, competitor_2, competitor_1, or any combination of those three competitors. So, the …

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Problem page a class is made up of 8 boys and 7 girls. half of the boys wear glasses. a student is selected at random from the class. what is the probability that the student is a boy with glasses?

You need to determine the number of ways in which 30 competitors from 50 can qualify. First, you have to realize that the order is irrelevant, that is: it is the same competitor_1, competitor _2, competitor _3 than competitor_3, competitor_2, competitor_1, or any combination of those three competitors. So, the …

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