3) The mean of virus found probability that a sample h (4 significant number)
Q: Explain Bayes theorem with examples and applications.
A: BAYES' THEOREM It is a concept used to determine the conditional probability of events. Consider two…
Q: Employers want to know which days of the week employees are absent in a five-day work week. Most…
A: If equally distribution than each day has equal expected probability = 1/5 = 0.20 df = n-1=5-1=4 α…
Q: 16) Suppose 80% of all flights by an airline are on time. Out of a random sample of 50 flights: a)…
A: The random sample size of flights, The proportion of all flights by the airline that are on time,
Q: What is the expectation of X where X is a single roll of a fair 6-sided dice (S {1,2, 3, 4, 5, 6})?…
A:
Q: What is the probability of texture is soft and color is red? Texture Hard Soft Total Blue 6 11 Color…
A:
Q: Explain the term Random Variables? Define discrete & continuous random variables?
A: Random variable: A random variable, usually denoted as X, is a variable whose possible values are…
Q: Let X be a chi-squared random variable with 23 degrees of freedom. What is the probability that X is…
A: Given,degrees of freedom (d.f)=23
Q: Employers want to know which days of the week employees are absent in a five-day work week. Most…
A: The chi-square good ness of fit is a statistical hypothesis test used to determine whether a…
Q: There are 74 players who play a chess game against the Computer. Each player plays 12 times and the…
A: From the given information we find the solution.
Q: What is the Central Limit Theorem? Motivate with the example of the mean of a sample describing…
A: The CLT stands for Central Limit Theorem. It is a fundamental theorem in statistics that states that…
Q: mployers want to know which days of the week employees are absent in a five-day work week. Most…
A: Provided information is, Employers want to know which days of the week employees are absent in a…
Q: the following table gives the probability distribution for the number of defective tires on a…
A: The given table is in the form of probability distribution. The independent variable is the number…
Q: Three fair dice are rolled and the numbers coming up are recorded. Let S be the sum of the three…
A: At first note that 63=216 outcomes will be present here. Then consider S be the sum of the outcomes…
Q: variable with 31 degrees of freedom. What is the probability that X is less than 25? and Let X…
A: It is an important part of statistics. It is widely used.
Q: The mean starting salary for nurses is 67,694 dollars nationally. The standard deviation is…
A: Note: According to bartleby we have to answer only first three subparts of the question please…
Q: Approximate the mean of the random variable X based on the simulation for 25 games. hits (Round to…
A: Given , the numbers of hits for 25 games in table, 0 0 1 1 0 5 4 3 0 1 2 2 1 2 3 1 1 1 1 1…
Q: Employers want to know which days of the week employees are absent in a five-day work week. M…
A: The given data is Day Observed Frequency Monday 8 Tuesday 20 Wednesday 18 Thursday 25…
Q: Picky randomly barks only 40% of the time as strangers pass by the house. Loomi randomly barks 30%…
A: Let X1 represent the binary random variable associated with the event that Dog P barks. That is,…
Q: H tire mean 35,800miles and st. deu 4825miles If a random sample of 50 tires is ta Ken Whatis the…
A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…
Q: Picky randomly barks only 40% of the time as strangers pass by the house. Loomi randomly barks 30%…
A: Given that, Picky randomly barks only 40% of the time as strangers pass by the house. Loomi randomly…
Q: Suppose data X1, ..., Xn are sampled from the population, sample mean is a random variable
A: It is given that Sample : x1, x2,......,xn
Q: 20% of testers pass an exam on average In the first year. 20 random students are randomly selected.…
A:
Q: can you explain how to standardize this? ste
A: Since you have asked multiple questions, we will provide the answer to the first question. In order…
Q: 10 patients, involved in the research, are randomly distributed into two groups. The probability to…
A: Formula : Binomial distribution is given by
Q: 2) Sideswipe Sam is a terrible driver. Assume that the probability that Sam will sideswipe a parked…
A: Given : Probability that Sam will sideswipe a parked car = p = 0.02 Let X denotes the number days…
Q: A Survey among Seniors revealed that the number of hours spent Studying the week before final exams…
A: Given Mean=25 Standard deviations=7
Q: Employers want to know which days of the week employees are absent in a five-day work week. Most…
A: Given Level of significance ɑ=0.05=5%
Q: 3. A large number of 10 ml samples are collected from a lake. The mean number of bacteria in a 10 ml…
A:
Q: Earthquake tremors in a region occur 3.55 times every 30 days on the average. in the next 90 days,…
A: a) In every 30 days, the average is 3.55 In every 1 day, the average is 3.55/30 In every 90 days,…
Q: If probability of choosing a blue chip from a bucket is 0.29, What is the probability of not…
A: Answer: From the given data, If probability of choosing a blue chip from a bucket is 0.29 P(choosing…
Q: Let X be a random variable with cumulative distribution functic given by: F(x) = 1 – e-Az Find the…
A: Hello! As you have posted 2 different questions, we are answering the first question. In case you…
Q: A probability distribution for all possible value of a sample statistic is known as?
A:
Q: 2. What is the probability of selecting a z-score that is less than -1.00?
A:
Q: Determine the mean or expec o each Random Variabte- 10 20 PC+) 50% 12% 38 %
A: From the given information, t 5 10 20 P(t) 50%=0.50 12%=0.12 38%=0.38
Q: Scores on a standard test of mechanical aptitude are normally distributed with a mean of 72 and a…
A:
Q: What is the probability of an event E in a uniform sample space S?
A: An event is E. An uniform sample space is S. n(E) is the number of outcomes in E. n(S) is the total…
Step by step
Solved in 3 steps
- a population has population proportions of P=0.50. A random sample size of 70 will be taken. a. What is the probability that a sample proportion is greater than 0.70? b. what is the probability that a sample proportion is less than 0.60? c. what is the probability that a sample proportion is within +_ 0.20 of the population proportion?In a family of 5 children, let X be the number of boys. a) What is the expected value of X? b) What is the variance of X8
- 100 among 600 articles are defective. If the maximum error with probability 0.99 is 0.02. Find the sample size.BINOMIAL DISTRIBUTION 9) Market research has shown that the cornflakes "Superman" is eaten by 20% of the population. a) Find the probability that in a random sample of 10 people exactly 3 people eat "Superman" cornflakes. b) Find the mean and the standard deviation of the number of people who eat "Superman" cornflakes in a random sample of 25 people. c) How large must a random sample be if the probability that it contains at least one person who eat "Superman" cornflakes is to be greater then 0.95? 10) Two percent of the bulbs produced by a factory are not usable. Find the smallest number of bulbs that must be examined so that the probability of obtaining at least one-usable bulb exceeds 0.5.A die has the numbers 1, 2, 2, 3, 3, 3 on its six sides. If the dies is rolled, what is the expected valueand variance of the number showing
- Let X be a chi-squared random variable with 17 degrees of freedom. What is the probability that X is greater than 10?A fair die is rolled ten times and each time the face-up is recorded. Let X be the number of times a number less than 3 has been recorded. a) what is the "state space"? b) what is the variance?I need help soon as possible
- Assume that hybridization experiments are conducted with peas having the property that for offspring, there is a 0.25 probability that a pea has green pods. Assume that the offspring peas are randomly selected in groups of 40. What is the meanNormal Probability Assume the length of songs on the radio are normally distributed with a mean of 212 seconds and a standard deviation of 19 seconds. a) What percentage of songs on the radio are 200 seconds or shorter? b) What percentage of songs are at least 230 seconds long? c) If a song on the radio is selected randomly what is the probability thay it last between 188 and 208 seconds? d)A radio station wants to identify all songs thay are on the lowest 5% by length. how long would a song need to last to fall in this group? (round your answer to nearest whole number)3. Let Y,,. , Y, be a random sample from a normal distribution with mean 30 and standard deviation 3. What is the probability the largest observation is greater than 30?