on campus 60% of the studemts are registered Democrats while 40% are registered Republicans. a) exactly...
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campus 60% of the studemts are registered Democrats while 40% are
registered Republicans.
a) exactly...
In a given county, records show that of the registered voters, 45% are Democrats, 40% are...
In a given county, records show that of the registered voters, 45% are Democrats, 40% are Republicans, and 15% are Independents. In an election, 70% of the Democrats, 30% of the Republicans, and 90% of the Independents voted in favor of a parks and recreation bond proposal. If a registered voter chosen at random is found to have voted in favor of the bond, what is the probability that the voter is a Republican? An Independent? A Democrat? The probability...
4. A population of voters contains 45% Republicans, 46% democrats and the rest are independents. Assume...
4. A population of voters contains 45% Republicans, 46% democrats and the rest are independents. Assume 40% of republicans, 60% of democrats and 50% of independents favor an election issue. A person chosen at random from this population is found to favor the issue in question. Find the conditional probability this person is a democrat.
In County A 50% of the registered voters are Democrats, 30% are Republicans, and 20% are...
In County A 50% of the registered voters are Democrats, 30% are Republicans, and 20% are Independents. During a recent election, 35% of the Democrats voted, 65% of the Republicans voted, and 75% of the Independents voted. a) What is the probability that a randomly selected registered voter from County A voted in the recent election? b) If a randomly selected registered voter from County A voted in the recent election, what is the probability that the voter is a...
. A political discussion group consists of four Democrats and seven Republicans. Three people are selected...
. A political discussion group consists of four Democrats and seven Republicans. Three people are selected (at random) to attend a conference. a. In how many ways can three people be selected from this group of eleven? b. In how many ways can three Republicans be selected from the seven Republicans? c. Find the probability that the selected group will consist of all Republicans.
In one state, 52% of the voters are Republicans, and 48% are Democrats. In a second...
In one state, 52% of the voters are Republicans, and 48% are Democrats. In a second state, 47% of the voters are Republicans, and 53% are Democrats. Suppose a simple random sample of 100 voters are surveyed from each state. What is the probability that the survey will show a greater percentage of Republican voters in the second state than in the first state? (A) 0.04 (B) 0.05 (C) 0.24 (D) 0.71 (E) 0.76
Just need e-i nothing else 13. A pollster asked 1000 adults whether Republicans or Democrats have...
Just need e-i nothing else
13. A pollster asked 1000 adults whether Republicans or Democrats have better domestic economic policies. The following table gives the two-way classification of there opinions. Sex Republicans Democrats No Opinion Male 205 350 39 Female 185 190 The pollster then randomly selected one adult from these 1,000 adults. The probability that the selected adult is a male is: (round your answer to three decimal places) B) DUE 12/10/19 The probability that the selected adult says...
Math 381, Inference Practice 1. For over 50 years, the mean age of registered Democrats in...
Math 381, Inference Practice 1. For over 50 years, the mean age of registered Democrats in the United States has been 40 years old. A campaign strategist wants to determine if the average age has decreased. A sample of 81 registered Democrats has a mean of 39 years old. The standard deviation is 4 years. Has the mean age decreased significantly? This is a directional, one tail test. a. State the appropriate hypotheses using a=.04. b. Draw the necessary sampling...
12. Suppose , 8. denote the proportions of Democrats (D), Republicans (R) and Others (O) in...
12. Suppose , 8. denote the proportions of Democrats (D), Republicans (R) and Others (O) in a large population of voters. (S00S0.8.25 1 anda+8+= 1.) An individual is selected at random from the population. Write X = 1, Y =0,2 = 0 if that individual is Dwrite X = 0, y = 1,2 = 0 if the individual is R and write X = 0, y = 0,2 = 1 if the individual is O. Find: a) E(X), E(Y); b)...
The responses of the 100 students are summarized in the segmented bar graph shown. On campus...
The responses of the 100 students are summarized in the segmented bar graph shown. On campus None One Two or more Off campus 0% 20% 40% 60% 80% 100% (b) W between residential status and level of participation in extracurricular activities among the 100 students in the sample rite a few sentences summarizing what the graph reveals about the association
Two random samples were drawn from members of the U.S. Congress. One sample was taken from members who are Democrats and the other from members who are Republicans. For each sampl...
Two random samples were drawn from members of the U.S. Congress. One sample was taken from members who are Democrats and the other from members who are Republicans. For each sample, the number of dollars spent on federal projects in each congressperson's home district was recorded on in Home Districts Less than S to 10 More than 5 Billion Billion 10 biltion Party Row Total Republicarn Column Total 92 (0) Make a cluster bar graph showing the percentages of Congress...
In a given county, records show that of the registered voters, 45% are Democrats, 40% are Republicans, and 15% are Independents. In an election, 70% of the Democrats, 30% of the Republicans, and 90% of the Independents voted in favor of a parks and recreation bond proposal. If a registered voter chosen at random is found to have voted in favor of the bond, what is the probability that the voter is a Republican? An Independent? A Democrat? The probability...
Just need e-i nothing else
13. A pollster asked 1000 adults whether Republicans or Democrats have better domestic economic policies. The following table gives the two-way classification of there opinions. Sex Republicans Democrats No Opinion Male 205 350 39 Female 185 190 The pollster then randomly selected one adult from these 1,000 adults. The probability that the selected adult is a male is: (round your answer to three decimal places) B) DUE 12/10/19 The probability that the selected adult says...
Math 381, Inference Practice 1. For over 50 years, the mean age of registered Democrats in the United States has been 40 years old. A campaign strategist wants to determine if the average age has decreased. A sample of 81 registered Democrats has a mean of 39 years old. The standard deviation is 4 years. Has the mean age decreased significantly? This is a directional, one tail test. a. State the appropriate hypotheses using a=.04. b. Draw the necessary sampling...
12. Suppose , 8. denote the proportions of Democrats (D), Republicans (R) and Others (O) in a large population of voters. (S00S0.8.25 1 anda+8+= 1.) An individual is selected at random from the population. Write X = 1, Y =0,2 = 0 if that individual is Dwrite X = 0, y = 1,2 = 0 if the individual is R and write X = 0, y = 0,2 = 1 if the individual is O. Find: a) E(X), E(Y); b)...
The responses of the 100 students are summarized in the segmented bar graph shown. On campus None One Two or more Off campus 0% 20% 40% 60% 80% 100% (b) W between residential status and level of participation in extracurricular activities among the 100 students in the sample rite a few sentences summarizing what the graph reveals about the association
Two random samples were drawn from members of the U.S. Congress. One sample was taken from members who are Democrats and the other from members who are Republicans. For each sample, the number of dollars spent on federal projects in each congressperson's home district was recorded on in Home Districts Less than S to 10 More than 5 Billion Billion 10 biltion Party Row Total Republicarn Column Total 92 (0) Make a cluster bar graph showing the percentages of Congress...
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