Q3 : The accuracy of detecting covid-19 using a specific PCR device is 90%. Knowing that the percentage of population who has covid-19 is 2%. a-Find the probability that a person who actually positive detected as positive b- Find the probability that a person who actually positive detected as negative

Q: Based on a poll, 50% of adults believe in reincamation. Assume that 7 adults are randomly selected,…

A:

Q: Based on a poll, 60% of adults believe in reincarnation. Assume that 5 adults are randomly selected,…

A: Given that  p=60%=0.60 , q=1-p=1-0.60=0.40 n=5 X~Binomial(n=5,p=0.60) Find P(x=4)

Q: The Philippine Red Cross says that about 11% of PH population has Type B blood. A blood drive is…

A: Given:  The Philippine Red Cross says that about 11 % of PH population has Type B blood.  A blood…

Q: A fair die, with its faces numbered from 1 to 6, is one in which each number is equally likely to…

A: "Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: If for a new cases of Covid-19 in India, Delhi is occurring at a rate of about 2 per month What's…

A: The Poisson distribution is used to calculate the probability of getting r number of…

Q: used a mnodern sheep astragalus to estimate the chances of its landing on each oI four sides and…

A: We have given that  Sample size n= 1000 Favorable cases x = 89 Sample proportion p^=x/n

Q: On the Metro Area, it is known from health records that the probability of selecting an adult over…

A:

Q: In a recent survey, 65% of the community favored building a health center in their neighborhood. If…

A: It is given that the number of citizens is 14. There is 65% of the community favored building a…

Q: Based on a poll, 60% of adults believe in reincarnation. Assume that 8 adults are randomly selected,…

A:

Q: Based on a​ poll, 6060​% of adults believe in reincarnation. Assume that 44 adults are randomly​…

A: From the given information, Based on a​ poll, 60​% of adults believe in reincarnation. . Assume that…

Q: A fair die, with its faces numbered from 1 to 6, is one in which each number is equally likely to…

A:

Q: A group of people were asked if they had run a red light in the last year. 409 responded "yes", and…

A:

Q: 1. If a product is randomly chosen, find the probability that this product is evaluated as qualified…

A:

Q: The proportion of people in a given community who have Covid- 19 infection is 0.005. A test is…

A: Given dataThe proportion of people in a given community who have covid 19 is 0.005and given0.99 as…

Q: Based on a​ poll, 60​% of adults believe in reincarnation. Assume that 8 adults are randomly​…

A: The probability that exactly of the selected adults believe in reincarnation is,

Q: A COVID-19 test has a probability 0.99 of giving a positive result when applied to a person…

A: Given Information :  A COVID-19 test has a probability 0.99 of giving a positive result when applied…

Q: group of people were asked if they had run a red light in the last year. 467 responded "yes", and…

A: Total people = 467 + 376 =843

Q: The proportion of people in a given community who have Covid-19 infection is 0.005. A test is…

A: Given information: The proportion of people who have COVID infection is 0.005. The probability that…

Q: It is computed that when a basketball player shoots a free throw, the odds in favor of his making it…

A:

Q: Based on a​ poll, 60​% of adults believe in reincarnation. Assume that 8 adults are randomly​…

A: a. Let X be the number of adults believe in reincarnation, hence, X follows binomial distribution (…

Q: A research study uses 500 men under the age of 55. Suppose that 30% carry a marker on the male…

A: Introduction: Out of the 500 men included in the research, 30% carried the marker on the male…

Q: A fair die, with its faces numbered from 1 to 6, is one in which each number is equally likely to…

A:

Q: Suppose that a person has a 3% chance of contracting COVID-19 attending a concert without wearing a…

A: So here it is given that P(contracting covid)=0.03 Let X be a random variable which denotes how many…

Q: Based on a poll, 50% of adults believe in reincarnation. Assume that 7 adults are randomly selected,…

A: Given,n=7p=0.5A random variable X~Binomial(n=7  , p=0.5)P(X=x)=7x 0.5x1-0.57-x ;…

Q: ransist aple transistors, then 1) find the probability that a sample has: i-One defective…

A: Since there are multiple questions, all parts from question 1 is answered.

Q: In screening for a COVID-19, the probability that a healthy person wrongly gets a positive result is…

A:

Q: Suppose that a medical test has a 85% chance of detecting a disease if the person has it…

A: It is given that, P(Dc) = 0.95,P(PT|D) = 0.85,P(NT|Dc) = 0.90. P(D) = 1-P(Dc)=1-0.95 =0.05 P(NT|D)…

Q: Based on a poll, 40% of adults believe in reincarnation. Assume that 7 adults are randomly selected,…

A: Given that, Probability, p = 40% = 0.40 Sample size = 7

Q: 45% of the population has Type o blood.  Find the probability that exactly 6 people in a group of 10…

A: Obtain the probability that exactly 6 people in a group of 10 random people have Type o blood.   The…

Q: Assume that 35.4% of people have sleepwalked. Assume that in a random sample of 1536 adults, 551…

A: In this question, it has been given that:35.4% of people have sleepwalkedWe have to find the…

Q: Based on a poll, 60% of adults believe in reincarnation. Assume that 7 adults are randomly selected,…

A: Let x follows binomial distribution with parameters n = 7 and p = 0.60   The pdf of binomial…

Q: A fair die, with its faces numbered from 1 to 6, is one in which each number is equally likely to…

A:

Q: The COVID 19 positivity rate in Bulacan is 1.5%. Find the probability that 5 new confirmed COVID 19…

A:

Q: Approximately 1% of the US population currently have active coronavirus. According to Johns Hopkins,…

A: Given Information:   Positive Test Negative Test Total Has COVID 8 2 10 No COVID 10 980 990…

Q: Based on a poll, 40% of adults believe in reincarnation. Assume that 8 adults are randomly selected,…

A: a. Let X be the number of adults believe in reincarnation which follows binomial probability…

Q: In a medical lab, the RAT (Rapid Antigen Test) is used to detect the SARS- Cov-2 virus that causes…

A: Binomial Distribution: If we have n trials and each having two outcomes viz. Success and Failure,…

Q: A fair die, with its faces numbered from 1 to 6, is one in which each number is equally likely to…

A: Confidence Interval: The form of the confidence interval is, CI = Point estimate ± Margin of error…

Q: A group of people were asked if they had run a red light in the last year. 144 responded "yes", and…

A: Given that  A group of people were asked if they had run a red light in the last year. People said…

Q: Based on a​ poll, 60​% of adults believe in reincarnation. Assume that 4 adults are randomly​…

A: Let x follows binomial distribution with parameters n = 4 and p = 0.60   The pdf of binomial…

Q: Clarke, one of the students, constructed a 95 percent confidence interval for p as 0.215±0.057. Does…

A:

Q: A group of people were asked if they had run a red light in the last year. 147 responded "yes", and…

A: Given: The total number of people responded "yes" when we asked if they had run a red light in the…

Q: Based on a poll, 50% of adults believe in reincarnation. Assume that 6 adults are randomly selected,…

A: Since you have posted a question with multiple subparts, we will solve first 3 sub-parts for you. To…

Q: Based on a poll, 60% of adults believe in reincarnation. Assume that 8 adults are randomly selected,…

A: Note:-Since you have posted a question with multiple sub-parts, we will solve first three sub-parts…

Q: A group of people were asked if they had run a red light in the last year. 269 responded "yes", and…

A:

Q: Suppose that the probability that a particular computer chip fails after t= a hours of operation is…

A: Assume, t be the random variable representing the operational time (in hours) after which a…

Q: An employee is selected from a staff of 10 to supervise a certain project by selecting a tag at…

A:

Q: Based on a poll, 40% of adults believe in reincarnation. Assume that 8 adults are randomly selected,…

A: Let "X" be the people who believe in reincarnation.

Q: In screening for a covid-19, the probability that a healthy person wrongly gets a positive result is…

A:

Q: a) The proportion of people in a given community who have Covid- 19 infection is 0.005. A test is…

A: We have to use Bayes theorem in one problem and use z test for proportion.

Q: with Covid-19. If Javier's test is positive for Covid-19, to the nearest 3rd decimal place, what is…

A: Here use tree diagram

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.