A psychology class consists of 32 freshmen and 48 sophomores. If the professor selects names from the class list using random sampling. What is the probability that the first student selected will be a freshman? p =     If a random sample of n = 6 students is selected and the first five selected are sophomores, what is the probability that the sixth student selected will be a freshman? p =     What is the probability that the first student selected will be a freshman after 10 sophomores students join the class? p =

Q: Lots of 40 components each are dimmed and acceptable if they contain 3 or more defective. The…

A: Hyper geometric distribution is a type of discrete distribution. It is used to estimate the…

Q: Assume that when adults with smartphones are randomly​ selected, 57​% use them in meetings or…

A: Binomial Distribution :  The binomial probability is a type of discrete probability distribution…

Q: Assume that when adults with smartphones are randomly​ selected, 59% use them in meetings or…

A: Given, p=0.59 and n=11 Let X be the random number which denotes the number of adults using…

Q: contains 2 red, 5 green, 6 blue, and 5 yellow marbles. If a single marble is chosen at random from…

A: So by using definition of probability we can solve given problem-

Q: If 14% of active duty soldiers in the U.S. Army are women, find the probability that if four…

A: Let X represent the random variable   n=4 p=0.14   X~ Binomial (4, 0.14)

Q: Assume that when adults with smartphones are randomly​ selected, 43​% use them in meetings or…

A: given data,p(use smart phone in meeting or classes) = 0.43p = 0.43q = 1 - p = 1 - 0.43    = 0.57n =…

Q: suppose that 10% of people are left handed. if 9 people are selected at random, what is the…

A: The random variable is left handed people. It follows binomial distribution. The sample size is 9.…

Q: Assume that when adults with smartphones are randomly​ selected, 47​% use them in meetings or…

A:

Q: Determine the probability of drawing 5 black cards in a row (with replacement) from a standard deck.

A:

Q: A poll is given showing 50% are in favor of a new building project. If 9 people are chosen at random…

A: Given data, p=0.50 n=9 P(X=3)=?

Q: An urn has 10 marbles: 3 red, 7 black. If we draw a random sample of 4, what is the probability we…

A:

Q: A survey showed that 50% of customers like Toyota cars, 40% customers like Nissan cars, and 70% like…

A: A survey showed that 50% of customers like Toyota cars, P(toyota) = 0.5 40% customers like Nissan…

Q: use them in meetings or classes. If 10 adult smartphone users are randomly​ selected, find the…

A: 10 adult smartphone users are randomly selected and 49% use them; n=10 p=0.49

Q: what is the probability that the chosen student is a psychology or anthropology student ?

A: Given that Number of anthropology students = 7 Number of socialogy students = 3 Number of psychology…

Q: What is the probability of randomly selecting a 3-children family with two girls?

A: We will first list all possible outcomes in the sample space, then we will use following definition…

Q: if 14 jurors are randomly selected from a population where 44% are minorities, what is the…

A: Obtain the probability that 2 or fewer jurors will be minorities. The probability that 2 or fewer…

Q: State whether each the following functions F(x) is a valid cumulative distribution function. Justify…

A:

Q: Eight people in the class are left-handed . If there are 32 students in the class, what is the…

A:

Q: Consider a political discussion group consisting of 5 Democrats,10 republicans, and 3 independents.…

A: Consider a political discussion group consisting of 5 Democrats,10 republicans, and 3 independents.…

Q: Assume that when adults with smartphones are randomly​ selected, 59​% use them in meetings or…

A:

Q: A survey showed that 79% of hiring managers have a negative view of workers with a messy desk. If 7…

A: According to the given sum, Let X be a random variable that follows Binomial distribution(n=7,…

Q: A 4-sided die can be used to select a number at random from the numbers 1, 2, 3, 4.  Suppose you…

A:

Q: Subjects were randomly chosen for a clinical trial consisting of 87 women and 88 men. 17 of the…

A:

Q: In a state legislature the elected representative include 17 Democrats, 13 Republicans, and 4…

A: Given  Elected representatives(34)=17(Democrat)+13(Republican)+4(independent)

Q: A box of 50 diodes contains 10 defective diodes. Suppose 10 diodes are selected at random and…

A: There are 50 diodes and 10 are defective in them and 10 are selected for inspection, let X be the…

Q: A box contains 20 white balls and 10 black balls. 8 balls are drawn at random one after another…

A: Given;a box contains 20 white balls and 10 black balls. and 8 balls are drawn at randomone after…

Q: A poll is given, showing 55% are in favor of a new building project. If 5 people are chosen at…

A: Given Information: Proportion p=0.55 Sample size n=5 The objective is to find the probability that…

Q: In a survey, 205 people indicated they prefer cats, 160 indicated they prefer dogs, and 40 indicated…

A: From the provided information, 205 people indicated they prefer cats, 160 indicated they prefer…

Q: Assume that when adults with smart phones are randomly selected 56% of them use them in meetings or…

A: Here we need to find the required probability using the binomial distribution.

Q: Suppose that 20% of fruit flies possess a certain gene.  If we randomly select 20 fruit flies, find…

A: Here given that 20% of fruit flies possess the gene. In a sample of 20 we need to find the…

Q: Suppose a university has 10,000 students, of which 55% are female and 45% are male. If 40% of the…

A:

Q: Assume that when adults with smartphones are randomly​ selected, 47​% use them in meetings or…

A: The binomial distribution function is: PX=x=Cxnpx1-pn-xwhere,n=number of trials,x=number of success,…

Q: A group of students consisting of 20 males and 20 females were selected to participate in a research…

A: The number of male students is 20 and the number of female students is 20.

Q: Suppose a class has 30 students, 13 male and 17 female. What is the probability that if a teacher…

A: It is given that the class consists of 30 students of which 13 are male and 17 are female. Teacher…

Q: Assume that when adults with smartphones are randomly​ selected, 43​% use them in meetings or…

A: According to the provided information, p=0.43 n=10

Q: there are 28 universities and 4 of them are in british columbia. Suppose universities are being…

A: Total no. of Universities(N)=28No. of universities in British Columbia(M)=4No. of universities are…

Q: According to the historical data, the life expectancy in Argentina is equal to the life expectancy…

A:

Q: Four cards are chosen from a standard deck of 5 playing cards with replacement. What is the…

A: Solution-: Four cards are chosen from a standard deck of 52 playing cards with replacement. What is…

Q: Assume that when adults with smartphones are randomly​ selected, 53​% use them in meetings or…

A: given data P(use smartphone in meeting or class) = p = 0.53sample size (n) = 5x = no. of adults use…

Q: there are 10 manufactured parts with 6 good parts and 4 defective parts.  A sample of three part was…

A: We have, N= 10 = total number of parts n1 = 6 = number of good parts n2= 4 = number of defective…

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.