If a typist makes an average of three errors for every hour, what is the probability that he will make at least 50 errors in eight hours?

Q: Explain what happens when finding the margin of error if all stays the same except the sample size…

A: Solution: The margin of error can be calculated by using the formula:

Q: How can I tell whether to use the addition rule or the multiplcation rule when determining…

A:

Q: The New York Times reported that 70% of adults know someone who has been exposed to coronavirus.…

A: Givenp=0.70n=20Let "x"be someone who has been exposed…

Q: Find the probability that more than 19 weeks pass between accidents.

A:

Q: compute every total probability.

A: We are given that CDF of X & Y are: FX,Y(x,y)=0x<-2 or y<-538-2≤x<2 and -5≤y<312x≥2…

Q: What are the chances of the teams making the finals?

A: Given that,Chances  of different teams making into the playoffs:1) probability of bears = 0.75 2)…

Q: Please discuss the main ways to determine probability

A: It is needed to discuss different ways of determining the probability.

Q: If one card is drawn from a well shuffled deck of 52 cards, find the probability of drawing a spade…

A: Answer:- Total number of cards = 52  We know that, Number of spade cards in a well shuffled deck =…

Q: One thousand (1000) elderly males and 2500 elderly females were randomly selected for a dementia…

A: Introduction: It is given that among a sample of 1000 elderly males, 210 elderly males are diagnosed…

Q: The average price for an acre of land in Texas is  N(2700, 7802)  in dollars. Jaime will survey 121…

A: Given Let the price of the plot be X X~N2700,7802Sample size, n=121

Q: what percentage of pregnancies last longer than 279 days?

A: The given mean 266 days and standard deviation 13 days.

Q: Identify the probability of success for x∼B (12,0.8)

A: Given  X~B(n=12,p=0.8)

Q: On average, commercial on HULU last 2.5 minutes. What is the probability that Julio will wait…

A:

Q: Please provide 25 formulas in Probability and Statistics.

A: Please find the formulae below. Thank you for choosing Bartleby.

Q: Louis is paid Php 20.00 whenever the results of tossing two coins are both heads but pays Php 10.00…

A: When a coin is tossed then there are 2 possible outcomes: Head and tail. Let us denote H=head T=tail…

Q: Recent crime reports indicate that 3 motor vehicle thefts occur each day in Ankara. What is the…

A:

Q: P3 Harvard students graduate with honors =

A: Let , X be the number of Harvard students graduate with honors Here , X→B(n=3 , p=0.48) The…

Q: In a  lab ,the coronavirus  vaccine causes negative effects  in 3 out of every 100 patients . 5…

A: Given,n=5p=0.03X~Binomial(n=5,p=0.03)P(X=x)=cxn px(1-p)n-x ;X=0,1,.....n

Q: Use a Spreadsheet for steps and solutions. If a worker makes an average of three errors for every…

A: Given: A worker makes an average of 3 errors for every hour. Required: To find the probability that…

Q: Find the probability that it was not filed against united Airlines

A: We have given that  Number of complaints filed against United Airlines = 1172  Total number of…

Q: Use 4 digit On average 1.2 customers per minute arrive at an airline desk during the peak period.…

A:

Q: the law of large numbers?

A: The law of large numbers states that as the sample size increases, the sample statistic comes closer…

Q: If 25 male college students are randomly​ selected, find the probability that their mean weight gain…

A: It is given that the mean is 1.2 and standard deviation is 5.6.

Q: What is the Sum of Squares Formulas for Population?

A:

Q: The average number of cars that enter the mountain through the tunnel is one every two minutes. If…

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

Q: The average count calculation errors at a local accounting firm per 12-h shift are 2.8. What is the…

A: Given that : λ=2.8

Q: The average price for an acre of land in Texas is  N(2700, 7802)  in dollars. Jaime will survey 121…

A:

Q: How to find the variance, explain the formula

A: Mean:Mean is a measure of center in case of quantitative data. Mean of a data set is the sum of the…

Q: Define most powerful test.

A: Define most powerful test

Q: A light bulb manufactoring plant makes LED bulbs. It is known the the average life is 10,000 hours.…

A: Consider X be the random variable which represents the life of the LED bulbs. X follows exponential…

Q: What are the rules for deteriming significant digits?

A: The rules for determining significant digits are:1. All non-zero numbers are significant   eg: The…

Q: Question 1: Which or the two variables (times absent or grades on the final exam) is the independent…

A: Dependent variable: If the variable influenced by other variable then the variable is called as…

Q: an observer counts 36O vehicles per hour at a highway. estimate the probability of having more than…

A: A observer count 360 vehicle per hour at a highway.

Q: A stenographer using a stenotype machine can type 3 errors per court in the document on average.…

A:

Q: Find the probability of getting three or more cars that fail among six cars tested

A: Solution: To find: The probability of getting three or more cars that fail among six cars tested.?

Q: certain disease has an incidence rate of 0.4%. If the false negative rate is 6% and the false…

A: In this question, concept of conditional Probability is applied. Conditional Probability The…

Q: Explain the concept of probability and statistics.

A: Statistics: Statistics refers to data and the methods of collecting numerical data, analyzing it,…

Q: An Archer hits 25% of his targets at 200 feet. If he takes five shots, what is the probability that…

A: Step 1:Given data : no. of trials n=5probability of success p=0.25Here success is hitting the…

Q: Dr. V. noticed that the more frequently a student is late or absent from class the worse he or she…

A: 1. Since you have asked multiple questions  , we will solve the first question for you . If  you…

Q: Define most powerful test.

A:

Q: 10. According to CNN, The unemployment rate fell to 3.7% in September 2018, the lowest level since…

A: 10. The random variable X is defined as the number of unemployed people which follows binomial…