marketing firm considers 200 fast food orders of which 110 are from McDonalds, 158 are accurate, and 89 are both from McDonalds and accurate.  If one of these orders is randomly selected, compute the probability that it is either from McDonalds or accurate.

Q: Suppose that after 10 years of service, 40% of computers have problems with motherboards (MB), 30%…

A: Number of computers have problems with motherboards (MB) = 40% Number of computers have problems…

Q: Two hundred patients who had either hip surgery or knee surgery were asked whether they were…

A:

Q: A survey conducted on a randomly selected day for an ice cream truck showed that 68% of customers…

A: The conditional probability is computed as PAB=PA∩BPB

Q: A firm has two computer systems available for processing telephone orders. At any given time, system…

A: We are given that a firm has two computer systems available for processing telephone orders. At any…

Q: Imagine that 60 passengers on a cruise ship might be carrying a rare virus, and government health…

A:

Q: A survey of 1200 people in a city found that 720 people have invested in stocks, 480 people have…

A: Probability quantifies the chances of happening an event. The probability values always lie in the…

Q: A statistician wants to study the number of credit cards a person has. He took a sample and found…

A: Given: X = number of credit cards a person has  X is a random variable which can take values 0, 1 ,…

Q: A public health researcher examines the medical records of a group of 837 men who died in 1998 and…

A: Given data:     The given number of men in the group is: n(M)=837. The number of men who died due to…

Q: In a country, 70% of the graduates are citizens,60% of the citizens graduates are employed while…

A:

Q: At a university with1,000 business majors, there are 200 business students enrolled in…

A: Given: n (introductory statistics) = 200 n (accounting and statistics) = 50 n (accounting but not…

Q: A study undertaken by the Miami-Dade Supervisor of Elections revealed that 44% of registered voters…

A: Solution: Let us denote D for Democrats, R for Republicans O for Others We have given, Given:…

Q: If two carriers of the gene for albinism marry, each of their children has a probability of 0.25 of…

A: Given : Let, X = The number of children being albino in this family. p = probability of children…

Q: In a survey, 495 people indicated they prefer pepperoni pizza, 95 indicated they prefer cheese…

A: Probability of an event = (The number of wanted outcomes) / ( the number of total outcomes )

Q: A survey showed that 50% of customers like Toyota cars, 40% customers like Nissan cars, and 70% like…

A: Let event A be the customers like Toyota cars, event B be the customers like Nissan cars. The…

Q: batch of 20 toy-molded parts contain 5 parts that are deffective. if two toys are selected at…

A: Given that  Total molded parts (n) = 20 Defective species = 5 Good parts = 20-5 = 15 We know that…

Q: if a board is selected at a random, find the probability of picking up one that is defective

A: Given that Number of defective boards = 4 Number of good boards = 10

Q: At a local high​ school, 15​% of the students have blue eyes. Each​ day, 9​% of the​ blue-eyed…

A: Let event B denotes that the students have blue eyes and S denotes student wear sun glass Given…

Q: According to a study, one-fifth of all rough diamonds produced in one region are blood diamonds.…

A:

Q: One-sixth of the male freshmen entering a large state school are out-of-state students. If the…

A:

Q: uppose you and your best friend are both in a group of 20 people, and five people are to be randomly…

A: Given that  Suppose you and your best friend are both in a group of 20 people. Randomly selected…

Q: The national weather service states that 40% of hurricanes that make landfall on the east coast of…

A: we have to find probability that in a sample of 19 hurricanes that make landfall on the east coast…

Q: Suppose that at a large university, 34% of the students decide to take their classes online. 1. If a…

A: given that 34% of students decide to take their classes online let sample size is "n" proportion is…

Q: Trick-or-Treat basket contains 16 bite-size Snickers and 14 bite-size Toblerone. If a child in fairy…

A: Given that  Total chocolates=16+14=30 Snickers chocolates=16 Toblerone chocolates=14 2 chocolates…

Q: Suppose a shipment of 170 electronic components contains 3 defective components. To determine…

A: Given shipment of 170 electronic components contains 3 defective components. Find out What is the…

Q: The national weather service states that 40% of hurricanes that make landfall on the east coast of…

A: Obtain the probability that in a sample of 15 hurricanes that make landfall on the east coast of the…

Q: The Dean of the College of Computer Studies collected information about undergraduate students…

A: The table given below helps to find the probability:   Quameth Webdev Dstuct Comprog Row total…

Q: In a company of 400 employees,250 use a computer and 100 use a telephone as part of their work. The…

A:

Q: SUPPOSE THAT YOU JUST RECEIVED A SHIPMENT OF SIX TELEVISIONS AND TWO  ARE DEFECTIVE. . IF TWO…

A: Given: Number of defective= 2 Total =6

Q: determine the probability that EXACTLY 5 of 15 televisions are tuned to NFL Monday Night Football

A: The binomial distribution is a discrete probability distribution. It is widely used in the field of…

Q: A customer service agent will make five cold calls tomorrow. If the probability that a randomly…

A:

Q: A survery of 100 students revealed that 25 had taken Spanish language course and 35 had taken French…

A: Let Students had taken Spanish language course (A) = 25 and students had taken French language…

Q: According to Nielsen Media Research, 30% of televisions are tuned to NFL Monday Night Football when…

A: Let x be follows binomial distribution with parameters n = 50 and p = 0.30 The pdf of binomial…

Q: A recent survey shows that 73​% of college students have a goldfish and 49​% have a Netflix…

A: Given, 73​% of college students have a goldfish P(G) = 0.73  49​% have a Netflix subscription P(N) =…

Q: A box containing a dozen of capacitors contains 4 that are defective. If 3 capacitors are selected…

A: Given that Number of capacitors = 12 Number of defective capacitors = 4 Sample size = 3 Note : Since…

Q: According to data from an LG Smartphone survey, 54% of adults with smartphones use them during…

A: Obtain the probability that exactly 30 have used their smart phones during a meeting or in class.…

Q: horse race has 10 entries and one person owns 2 of those horses. Assuming that there are no​ ties,…

A: Number of ways in which 2 horses are chosen from 10 entries for first and second position.

Q: In a country, 75% of the graduates are citizens,60% of the citizens graduates are employed while…

A: Given , 75 percent of the graduates are citizens ... Among them 60 percent of citizens are employed…

Q: A recent survey indicates that 62% of HKU students who registered in an Economics course have…

A: Let us denote X=the number of HKU students who registered in an Economics course n=number of trials=…

Q: A flashlight has 8 batteries, 4 of which are defective. If 4 are selected at random without…

A: Solution: Given information: Total batteries = 4 defective + 4 non defective =8 Total batteries=8…

Q: In a country, 90% of the graduates are citizens, 70% of the citizens graduates are employed while…

A: in a country, 90% of the graduates are citizens, 70% of the citizens graduates are employed while…

Q: In a survey, 422 people indicated they prefer pepperoni pizza, 80 indicated they prefer cheese…

A: Solution: From the given information, total number of people is 422. Out of which 80 indicated they…

Q: A circuit to run a model railroad has 43 switches and 9 are defective. If a person selects two…

A: Given that there are 43 switches and 9 are defective. If the person selects two switches at random.…

Q: It is known that two defective copies of a commercial software program were erroneously sent to a…

A: (a)   Obtain the probability that exactly one of the defective copies will be found.   The…

Q: If a seed is planted, it has an 80% chance of growing into a healthy plant. If 12 seeds are planted,…

A: Given,n=12q=0.80p=1-qp=1-0.80=0.20Let X=no.of doesn't growX~Binomial (n=12   ,  p=0.20)P(X=x)=12x…

Q: A jet fighter consists of two engines. The probability that the second engine functions in a…

A: A is the event that shows the first engine functions in a satisfactory manner during its design…

Q: In a large school, it was found that 79% of students are taking a math class, 70% of student are…

A: Given, 79% students taking math class, 70% students taking English class, 59% student taking both…

Q: According to a study, 76% of K-12 schools or districts in a country use digital content such as…

A: From the provided information, 76% of K-12 schools or districts in a country use digital content…

Q: n a survey, 8% of the respondents said that their favorite ice cream flavor is cookies and cream,…

A:

Q: If a list of 20 individuals who volunteered to supply blood, when it is needed for transfusion, has…

A:

Q: In a high school graduating class of 100 students, 54 studied mathematics, 69 studied history, and…

A: Define the events as follows: M : The student takes Mathematics H : The student takes History

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.