In a certain liberal arts collège with about 10,000 students, 57% are males. two students from this college are selected at random, what is the probabili that they are of the same gender?

Q: According to a study conducted by a statistical​ organization, the proportion of people who are…

A: Solution: The proportion of people who are satisfied with the way things are going in their lives is…

Q: A psychology class consists of 36 males and 48 females. If the professor selects names from the…

A: Given, A psychology class consist of 36 males and 48 females. and professor select names from the…

Q: (a) Alsafa hospital records show that of patients suffering from a black fungus disease, 75% die of…

A: It can be solved using binomial distribution.

Q: Of all the weld failures in a certain assembly, 85% of them occur in the weld metal itself, and the…

A: Random Variable: In probability theory, a random variable is a variable whose values depend on…

Q: In the 2012 presidential pre-election surveys, Pew Research sampled 1,112 likely voters during…

A: Sample size:   Large sample sizes gives accurate results. Large sample sizes gives greater…

Q: If subjects in an experiment are separated into groups of Whites and Non-Whites prior to the random…

A:

Q: in a certain town, 25% of people commute to work by bicycle. if a person is selected randomly from…

A: According to the provided information, 25% of people commute to work by bicycle.

Q: A high school student association decided to conduct an experiment in which 150 students were…

A: Given Data:   Female Male Total Went Abroad 29 20 49 Did not go Abroad 55 46 101 Total 84…

Q: If Event A is drawing a 10 from a standard deck of cards and Event B is drawing a "spade" from a…

A:

Q: Consider the probability experiment in which a 4-side dice is tossed twice and two coins are tossed…

A:

Q: Given that the number superimposed in a rolling dice experiment is odd, what is the probability that…

A: It was stated that the number superimposed in a rolling dice experiment is odd. Need to find the…

Q: In the experiment of tossing an unbiased coin (or synonymously balanced or fair coin), the sample…

A:

Q: The producer’s risk in a sampling program is 0.05 andthe consumer’s risk is 0.10; the AQL is 0.03…

A: Given information Producer’s risk = 0.05  Consumer’s risk = 0.10 AQL = 0.03 LTPD = 0.07 a)…

Q: This year’s water pollution readings at State Park Beach seem to be lower than last year. A sample…

A: The hypotheses can be defined as: Null hypothesis: H0: µ = 3.8 Alternative hypothesis: H1: µ <…

Q: According to Cerulli Associates of Boston, 30% of all CPA financial advisors have an average client…

A: Binomial distribution: The binomial distribution gives the probability of number of successes out of…

Q: In a work place that has 50 members, 30% are fluent in two or more languages.  Three people are…

A: (a)   Determine whether the given study is binomial experiment or not.   The given study is binomial…

Q: In a previous nationwide poll of a large country, 46% of adults with children under the age of 18…

A: The random variable X follows normal distribution. We have to test whether the proportion of…

Q: Of all the weld failures in a certain assembly, 85% of them occur in the weld metal itself, and the…

A: Given: Sample size (n) = 20 The probability of weld failures in the weld metal itself (p) = 0.85 The…

Q: Consider the probability experiment in which a 4-side dice is tossed twice and two coins are tossed.…

A:

Q: A jury pool consists of 32 people, 15 people aged 45-60 and 17 people aged 25-44. Compute the…

A:

Q: of the random variable K repres envoys of the random variable B.

A:

Q: Refer to the sample data for pre-employment drug screening shown below. If one of the subjects is…

A: Given information:   Positive test result Negative test result Total Subject uses drugs 43 4 47…

Q: A poll is given, showing 65% are in favor of a new bulding project. If 6 people are chosen at…

A: 1)Answer: Given that: p= 0.65 , n= 6 now will use Binomial probability…

Q: A wholesaler in apples claims that only* 4 per cent of the apples supplied by him are defective. A…

A: Any assumption about the parameter or probability function is known as hypothesis testing. For the…

Q: At this weekend’s football game, 15 out of the first 50 people who entered the field were not…

A: For sample, x is the number of people not wearing hats. S is the number of people counted for the…

Q: 7. A random sample of 200 adults are classified below according to gender and the level of education…

A: Given, Sample size = 200   Male Female Total Elementary 38 45 83 Secondary 28 50 78 College…

Q: In a certain town, 4% of people commute to work by bicycle. If a person is selected randomly from…

A: The odds of an event A is the ratio of the number of unfavorable choices for the event to the number…

Q: A psychology class consists pf 28 males and 52 females. If the professor selects names from the…

A: Number of males in the class = 28 Number of females in the class = 52 Total number of students =…

Q: A survey of American women who were asked to name their favorite color yielded the following…

A: Find the probability that a randomly selected participants favorite color is yellow or black: It is…

Q: Using the pigeonhole principle In a group of 21 people, there is a ____ chance that at least two of…

A: Pigeonhole principle say that When more than n pigeons are placed into n pigeon holes with at least…

Q: 11. In a recent Presidential election, the population that voted was broken down by gender and party…

A: The given data is   Democrat Republican Male 0.22 0.25 Female 0.3 0.23

Q: In a previous nationwide poll of a large country, 45% of adults with children under the age of 18…

A: The random variable X follows normal distribution. We have to test whether the proportion of…

Q: Are avid readers more likely to wear glasses than those who read less frequently? Three hundred men…

A: Solution:- Given data    Amount of reading glasses(yes) glasses(no) Total Above average 47 26…

Q: In a previous nationwide poll of a large country, 41% of adults with children under the age of 18…

A:

Q: In a survey of a random sample of 1,500 residents aged 25 years or older from a particular county,…

A: We solve this question just by using some logic and basic arithmetic. The definition and use of…

Q: 1,000 families were selected at random in a city to test the belief that high income families…

A: Given  a=370 b=430 a+b=800 C=130 d=70 c+d=200 a+c=500 b+d=500 N=1000

Q: The following is an arrangement of 25 men, M, and 15 women, W lined up to purchase tickets for a…

A:

Q: In a study of the opinions of all 18-25 year old adults in the United States, which of the following…

A: the answer is given below

Q: In a random sample of 450 people aged 20-24, 24% were smokers. In a random sample of 400 people aged…

A:

Q: Approximately 8% of males experience red-green color blindness. Suppose a random sample of 200 men…

A: Given that, The population proportion of 8% males who experience re-green color blindness.

Q: (11) A three-person jury is to be selected, at random, from a pool that has 6 people with green eyes…

A:

Q: A pointer is spun on a fair wheel of chance having its periphery labeled Trom 0 to 100. (a) What is…

A: (a) Let 'S' be the sample space, in which the pointer points from 0 to 100. (b) The 'A' be the set…

Q: If A and B are two independent events from the sample space s then P (A and B ) = _*_

A:

Q: This year’s water pollution readings at State Park Beach seem to be lower than last year. A sample…

A: The hypotheses can be constructed as: Null hypothesis: H0: µ = 3.8 Alternative hypothesis: H1: µ…

Q: For a random sample drawn from a population, which of the following statement TRUE?

A: Here use central limit theorem for checking Normality of sampling distribution

Q: To try to predict the outcome of the vote for the school board election, a town manager used random…

A: The correct option is option (A) "Yes, because it is a simple random sample"

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.