Suppose that 75% of a population voted in the last election. You take a random sample of 31 members of this population. Find the probability (round to three decimals) that: a. Exactly 23 of the people voted : b. At most 23 voted : C. At least 23 voted:

Q: ) What is the probability that exactly 102 of them are in favor of a new building project? Round…

A: n = 146 p = 0.7

Q: d. If 100 SAT scores are randomly selected, find the probability that they have a mean between 1400…

A: d. Z-score: The z score formula is, z=x¯-μx¯σx¯ In the formula, μx¯ is the population mean, σx¯ is…

Q: Use the data in the following table, which shows the results of a survey of 1,998 gamers about their…

A: The number of participants is between 13-24 is 113+169=282.

Q: Total 874 432 245 1551 Given that a randomly selected respondent thought it was a bad idea, what is…

A: We have given that the following table shows the responses to the question, cross-tabulated with…

Q: A survey resulted in the sample data in the given table. If one of the survey respondents is…

A: Solution: The given data is

Q: A test was given to a group of students. The grades and gender are summarized below Total Male 18 13…

A: Given   A B C total Male 5 18 13 36 Female 14 3 16 33 Total 19 21 29 69

Q: Below, the two-way table is given for a class of students. Freshmen Sophomore Juniors Seniors Total…

A:

Q: Out of 450 applicants for a job, 212 are male and 54 are male and have a graduate degree. 212 212 54…

A: The probability of simple events is finding the probability of a single event occurring.

Q: Find the probability that a student picked at random will be female and right- handed? A random…

A:

Q: [Q3] A sample of 200 people are classified as below. If a person is picked at random from this…

A: Total no: of persons, n=250 M-male F-female no: of male, n(M)=128 no: of female, n(F)=122…

Q: A test was given to a group of students. The grades and gender are summarized below   A B C TOTAL…

A: Given that,

Q: . What is the approximate probability of throwing between 47 and 53 heads in 100 tosses of unbiased…

A:

Q: A test was given to a group of students. The grades and gender are summarized below A В C Total Male…

A: Given that, a test was given to a group of students. The grades and gender are summarized in given…

Q: After giving a test to a group of students, below is the summary of grades by gender. A B Total Male…

A:

Q: Total Male 6. 7. 4 17 Female 17 2 10 29 Total 23 14 46 If one student is chosen at random from those…

A: The given table is in the form of 2×3 table. The variable is students. The students are male and…

Q: A test was given to a group of students. The grades and gender are summarized below A Total Male 9.…

A: Given that  The number of students got B grade  (B) = 16 The total number of female students  (F) =…

Q: Suppose 45 % of the population has a college degree. If a random sample of size 457 is selected,…

A: Where,

Q: Giving a test to a group of students, the grades and gender are summarized below A Total Male 19 15…

A:

Q: (a) How many strings of five hexadecimal digits do not have any repeated digits? (b) How many…

A: The required answers are: (a) 524160 (b) 524416 (c) 50%

Q: A test was given to a group of students. The grades and gender are summarized below A B Total Male…

A:

Q: A test was given to a group of students. The grades and gender are summarized below В Total Male 9.…

A: we use the formula P(A|B) = P( A n B ) / P(B)

Q: A test was given to a group of students. The grades and gender are summarized below Total Male 8 11…

A:

Q: After giving a test, below is the summary of grades by gender. A B Total Male 18 12 5 35 Female 11 9…

A:

Q: What is the probability that out of 175 chicks hatched on Peeper Farm, at least 80 will be female?…

A:

Q: Assuming there are n= 50,000 couples in the los ángeles area, what is the probability that more than…

A: Obtain the probability that more than one of the 50,000 couples has all the listed characteristics:…

Q: A test was given to a group of students. The grades and gender are summarized below A В C Total Male…

A:

Q: A test was given to a group of students. The grades and gender are summarized below   A B C Total…

A:

Q: Below, the two-way table is given for a class * of students. Freshmen Sophomore Juniors Seniors…

A: Solution: The given table of data is

Q: Find the indicated probability. Suppose that 11% of people are left handed. If 8 people are selected…

A: Let x follows binomial distribution with parameters n = 8 and p = 0.11   The pdf of binomial…

Q: The contingency table below represents the political affiliation of a group of individuals, broken…

A: Answer -   Given the contingency table                  Republican Democrat Independent total…

Q: After giving a test to a group of students, below is the summary of grades by gender. A В C Total…

A: The probability that the student is male isPMale=Total number of malesTotal number of students=3071

Q: A city planner surveyed 141 residents. For each, the planner recorded whether the resident owns a…

A: Total Residents are 141   Alone Not Alone Car 26 10 No Car 32 73 We have to find (a) What…

Q: (a) What is the probability that x is within +$500 of the population mean if a sample of size 70 is…

A: here for part a and b  population  mean  = 51800 population standard deviation = 4000

Q: Q3: A- If approximately 2% of 200 engineering students are left-handed, find the probability that…

A: From the given information we find the solution.

Q: A test was given to a group of students. The grades and gender are summarized below A. Total 33 24…

A:

Q: Below, the two-way table is given for a class of students. Freshmen Sophomore Juniors Seniors Total…

A:

Q: Giving a test to a group of students, the grades and gender are summarized below В Total Male 8. 18…

A: Given data, P(C)=?

Q: Below, the two-way table is given for a class of students. Freshmen Sophomore Juniors Seniors Total…

A: Given that contingency table Now using this table find required probability.

Q: A recent poll of residents in a certain community revealed the following information about voting…

A: From the table we see that: n(D)=n(Democrats)=110 n(M)=n(Male)=120 n(M and D)=50 So, n(M or…

Q: A city planner surveyed 155 residents. For each, the planner recorded whether the resident owns a…

A: Given data,   Alone Not Alone Total Car 31 21 52 No Car 33 70 103 Total 64 91 155

Q: A test was given to a group of students. The grades and gender are summarized below A В C Total Male…

A: According to the provided information,

Q: A city planner surveyed 140 residents. For each, the planner recorded whether the resident owns a…

A: Given   Alone Not alone Totals car 8 17 25 no car 31 84 115 Totals 39 101 140

Q: A test was given to a group of students. The grades and gender are summarized below C Total Male 16…

A: Let Gender = X and Grades = Y Given data        Grades Y         A B C f(X)   Male 16 13 14…

Q: A test was given to a group of students. The grades and gender are summarized below A C Total Male…

A: To calculate: Probability that the student was female given that they got a B. Using Conditional…

Q: Male Female Total Orange 30 65 95 Green 12 25 37 Total 42 90 132 A group of 132 students at an…

A: Obtain the probability that this student prefers the color green given that a randomly selected…

Q: A city planner surveyed 140 residents. For each, the planner recorded whether the resident owns a…

A: The given summarized table is, (a) The probability that residents own a car is, Therefore, the…

Q: A sample of 200 people are classified as below. If a person is picked at random from this Stoup,…

A: If the probability of getting selected for each outcome is equal then such outcomes can be termed as…

Q: A test was given to a group of students. The grades and gender are summarized below A В C Total Male…

A: Required probability is P(male/got an A)

Q: A test was given to a group of students. The grades and gender are summarized below A B C Total Male…

A: We have to find given probability.

Q: Giving a test to a group of students, the grades and gender are summarized below В Total Male 8. 9.…

A: Solution: 1. The given table of data is

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.