Assume that on a standardized test of 100 questions, a person has a probability of 85% of answering any particular question correctly. Find the probability of answering between 80 and 90 questions, inclusive round four decimal places. P(80 ≤ X ≤ 90) =
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: An experiment Consist of tossing a coin 144 times. Let X be the number of tails. Find P(X>84).
A:
Q: Based on a poll, among adults who regret getting tattoos, 22% say that they were too young when they…
A: Since you have posted a question with multiple sub parts, we will provide the solution only to the…
Q: Suppose that the probability that the life of a battery will exceed 36 months is 0.42 You take a…
A: It is given that, n=102 p=0.42
Q: A quick quiz consists of a multiple-choice question with 6 possible answers followed by a…
A: Given that, A quick quiz consists of a multiple-choice question with 6 possible answers followed by…
Q: 8% of all Americans live in poverty. If 45 Americans are randomly selected, find the probability…
A: Note- Since you have posted a question with multiple sub-parts, we will solve the first three…
Q: Solve In R programmning language: Suppose we know that the birth weight of babies is Normally…
A: Given μ=3500, σ=500 P(X>3100)= ?
Q: According to a Gallup Poll, the probablity that a Republican approves of the death penalty is 69%.…
A: The probability that Republicans approve of the death penalty is 69%.p=0.69wants to calculate…
Q: A student takes a multiple choice exam with 10 questions, each with four possible selections for the…
A: Given that, A student takes a multiple choice exam with 10 questions, each with four possible…
Q: The table summarizes results from 987 pedestrian deaths that were caused by autornobile accidents.…
A:
Q: Assume that on a standardized test of 100 questions, a person has a probability of 75% of answering…
A: Given, n=100 p=0.75 Now, n×p=100×0.75=75>5n×p×1-p=100×0.75×0.25=18.75>5 Therefore assumption…
Q: 12% of all Americans live in poverty. If 31 Americans are randomly selected, find the probability…
A: Note: According to Bartleby expert guidelines, we can answer only first question with their three…
Q: Assume that on a standardized test of 100 questions, a person has a probability of 80% of answering…
A: It is given that the probability of answering any particular question is 0.80. The total number of…
Q: Calculate the probability that one of the next 6,827 times the slot machine is played, a jackpot is…
A: Here given , The chance of winning a jackpot on a certain slot machine is 1/17500 . Next 6827…
Q: Assume that on a standardized test of 100 questions, a person has a probability of 85% of answering…
A:
Q: 00 R The table summarizes results from 983 pedestrian deaths that were caused by automobile…
A: Driver intoxicated Pedestrian Intoxicated Yes Pedestrian Intoxicated No Total Yes 49 74 123…
Q: Marcos took the EnggMath3 exam decided to guess on a 10-item multiple choice. Each problem has 5…
A: # x be the no of answers correct follow binomial distribution (n=10, p=1/5) 1): then to find…
Q: The probability that a person living in a city owns a pet is estimated to be 0.2. Find the…
A: Independent Events: Let A1, A2, ... , An be n independent events with P(Ai) > 0 for all i = 1, 2,…
Q: The mean percent of childhood asthma prevalence in 43 cities is 2.41%. A random sample of 31 of…
A: Guven:Mean (µ) = 2.41Standard deviation (σ) = 1.36Sample size (n) = 31
Q: furnace bills are normally distributed. With a mean of 273 and an SD of 30. If 144 bills are…
A: Let M denote the mean of sample of n = 144 bills. Then M follows N(mean = 273, SD = 30/√(144) = 2.5)…
Q: Assume that on a standardized test of 100 questions, a person has a probability of 75% of answering…
A: Given: Total number of questions, n is 100. Probability of answering correctly, p is 0.75…
Q: A student takes a true-false test but did not study and randomly guesses each answer. There are 20…
A:
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: A student takes a multiple-choice test that has 6 questions. Each question has four choices. student…
A: It is given that, A student takes a multiple-choice test that has 6 questions i.e. n=6 Each…
Q: Kevin, a traffic engineer, computes that there is an average of 235 subway delays per 30-day period.…
A: The given data is as follows:The average number of delays in a 30-day period is 235
Q: IQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one individual…
A: It is given that the IQ scores follow normal distribution with mean 100 and standard deviation 15.…
Q: Suppose it takes a child between 4.5 and 12 minutes to eat an ice cream cone. Let X= the time, in…
A:
Q: The distances golf balls travel under laboratory testing conditions are normally distributed. The…
A:
Q: The amount of time people spend at the gym follows a uniform distribution from 45 to 90 minutes.…
A: From the provided information, The amount of time people spend at the gym is uniformly distributed…
Q: The time to fly via a commercial airliner from Newark airport to Atlanta follows a uniform…
A: We have to find out given probability..
Q: Show that the expected value of îN is p.
A: Given that p denote the probability that someone aupports the policy. And X denote the nunber of…
Q: The table summarizes results from 978 pedestrian deaths that were caused by automobile accidents.…
A: Pedestrian Intoxicated Total DriverIntoxicated Yes No Yes 52 72 124 No 263 591 854…
Q: The table summarizes results from 988 pedestrian deaths that were caused by automobile accidents.…
A: Total (231+611)= 842 cases involved drivers that were not intoxicated. We can pick two cases from…
Q: The probability that a person catches a cold during the cold and flu season is 0.4. If 10 persons…
A: We have given that- P(a person catches a cold during the cold and flu season) = 0.4 Sample size, n =…
Q: What is the probability the pedestrian was not intoxicated
A: Given data The table summarizes results from 990 pedestrian deaths Driver intoxicated?…
Q: The mean percent of childhood asthma prevalence in 43 cities is 2.23%. A random sample of 34 of…
A:
Q: On a multiple choice test with 10 questions, each question has four possible answers, one of which…
A:
Q: Assume that adults with smartphones are randomly selected, 48% use them in meetings or classes. If…
A: Let "X" be adults who use their smartphones in meetings or classes.
Q: An earth-conscious clothing store offers a 15% discount if you bring in a bag full of old clothing…
A: From the given information, n=20 and p=0.69.
Q: I want my estimate to be accurate, I want the error of pN to be small. How many people should I poll…
A: Given that - Suppose you want to find out how many people support Policy X. A standard polling…
Q: Use the data in the following table, which lists drive-thru order accuracy at popular fast food…
A:
Step by step
Solved in 2 steps
- The table summarizes results from 975 pedestrian deaths that were caused by automobile accidents. Driver Pedestrian Intoxicated? Intoxicated? Yes No Yes 64 82 No 261 568 If one of the pedestrian deaths is randomly selected, find the probability that the pedestrian was not intoxicated or the driver was intoxicated. Report the answer as a percent rounded to one decimal place accuracy. You need not enter the "6" symbol. prob =find the probability of guessing at least 9 out of 14 correctly. Round inetermediate calculations and final answers to three decimal placesFind the indicated probability and interpret the result. From 1975 through 2020, the mean annual gain of the Dow Jones Industrial Average was 653. A random sample of 34 years is selected from this population. What is the probability that the mean gain for the sample was between 400 and 800? Assume o = 1540. The probability is (Round to four decimal places as needed.) Interpret the result. Select the correct choice and fill in the answer box to complete your choice. (Round to two decimal places as needed.) O A. About OB. About OC. About OD. About % of samples of 46 years will have an annual mean gain between 400 and 800. % of samples of 34 years will have an annual mean gain between 653 and 800. % of samples of 34 years will have an annual mean gain between 400 and 800. % of sampl of 34 years will have an annual mean gain between 400 and 653.
- The probability that a certain type of sea turtle hatching survives until adulthood is assumed to be 1 out of 1,877. If 980 hatchlings incubate in a certain nesting area, calculate the probability that at least 3 survive to adulthood. Use three decimal place accuracy.The table summarizes results from 979 pedestrian deaths that were caused by automobile accidents. DriverIntoxicated? Pedestrian Intoxicated? Yes No Yes 59 74 No 248 598 If two different pedestrian deaths are randomly selected, find the probability that they both involved pedestrians that were not intoxicated.Report the answer as a percent with two decimal places accuracy. (You need not enter the "%" symbol).Probability = %The mean percent of childhood asthma prevalence in 43 cities is 2.38%. A random sample of 30 of these cities is selected. What is the probability that the mean childhood asthma prevalence for the sample is greater than 2.8%? Interpret this probability. Assume that o = 1.25%. The probability is (Round to four decimal places as needed.) Interpret this probability. Select the correct choice below and fill in the answer box to complete your choice. (Round to two decimal places as needed.) O A. About % of samples of 43 cities will have a mean childhood asthma prevalence greater than 2.8%. O B. About % of samples of 30 cities will have a mean childhood asthma prevalence greater than 2.38%. O C. About % of samples of 30 cities will have a mean childhood asthma prevalence greater than 2.8%. Click to select your answer(s). P Type here to search 99+ a (? 1:42 PM 4/11/2021 ho insen 144 ese & t backspace %23 3. %24 4 6. 8 2. Y W tab H. J. K pase 5 R
- The table summarizes results from 975 pedestrian deaths that were caused by automobile accidents. DriverIntoxicated? Pedestrian Intoxicated? Yes No Yes 49 73 No 221 632 If one of the pedestrian deaths is randomly selected, find the probability that the pedestrian was not intoxicated.Report the answer as a percent rounded to one decimal place accuracy. prob = %The table summarizes results from 985 pedestrian deaths that were caused by automobile accidents. Pedestrian Intoxicated? Driver Intoxicated? Yes No Yes 53 No 246 W intoxicated or the driver was not intoxicated. If one of the pedestrian deaths is randomly selected, find the probability that the pedestrian was not prob Report the answer as a percent rounded to one decimal place accuracy. You need not enter the "%" symbol. = Submit Question Lory R tudio 86°F Sunny Help K F4 % 5 21 T G B A 6 F5 Y H N & 7 F6 U J M 00 * 8 F7 K 75 이 SM 9 F8 L O F9 ? [ F10 + 11 ] F11 F12 Backspace Enter Shift Insert Print Screen Delete Home Scroll Lock End 10:17 AM 6/21/2022 PgUp Pause Break PgDnDetermine the probability of seeing a Z score of 2.699 or one with a larger absolute value.
- If you roll one six-sided die and X = the # on the die. What is the mean value of X?The distances golf balls travel under laboratory testing conditions are normally distributed. The mean is 312 yards. The probability the golf ball travels further than 319 yards is 0.28. Find the probability a randomly selected golf ball travels between 305 yards and 319 yards. Express the answer as a decimal value rounded to the nearest hundredth.
