A box contains 15 red and 20 blue blocks. If 10 blocks are drawn at random from the pox, what is the expected number of red blocks drawn? (Ans: 4.29)-

Q: 34% of adults say cashew are there favorite kind of nut. You must randomly select 12 adults and ask…

A: Given 34% of adults say cashew are there favorite kind of nut. You must randomly select 12 adults…

Q: 90% of the voters favor Ms. Stein. If 400 voters are chosen at random, what is the expected number…

A: Let X be the number of voters who indicate favoring Ms. Stein. Suppose 90% of the voters favor Ms.…

Q: forty percent of consumers perfer to purchase electronics online.  you randoml select 8 consumers.…

A: Let X be the number of consumers who prefer to purchase electronics online. Then, for given data:…

Q: Find the chance of throwing head or tail alter- natively in 3 successive tossings of a coin ?

A:

Q: In a large population, 59% of the people have been vaccinated. If 5 people are randomly selected,…

A:

Q: What is the probability of selecting 4 cards in a row, all of the same suit from a standard deck of…

A: From the provided information, 4 cards of same suit are to be selected from a standard deck. Total…

Q: 32​% adults favor the use of unmanned drones by police agencies. Twelve U.S. adults are randomly…

A:

Q: 41% adults favor the use of unmanned drones by police agencies. Twelve U.S. adults are randomly…

A: Givenp=0.41n=12Let "x" be no. of U.S. adults who favor the use of unmanned drones by police…

Q: 19% adults favor the use of unmanned drones by police agencies. Twelve U.S. adults are randomly…

A: Consider X denotes adults favor the use of unmanned drones by police agencies which follows binomial…

Q: a large population, 68% of the people have been vaccinated. If 5 people are randomly selected, what…

A: Given data, 68% of the people have been vaccinated p=0.68 If 5 people are randomly selected, n=5…

Q: 26% adults favor the use of unmanned drones by police agencies. Twelve U.S. adults are randomly…

A:

Q: ​36% adults favor the use of unmanned drones by police agencies. Twelve U.S. adults are randomly…

A: Given information:Number of samples, n = 12Probability of success, p = 0.36Probability of failure, q…

Q: Dave's wardrobe contains 19 T-shirts, of which 18 are gray. Dave selects a T-shirt at random. What…

A: Given problem Given that

Q: 34% adults favor the use of unmanned drones by police agencies. Twelve U.S. adults are randomly…

A: From the given information,Binomial parameters, n = 12 and P=34% .034.Here we can use binomial…

Q: a factory produces  components of which 5% are defective. Components are packed in boxes of 10. A…

A: Given,n=10p=0.05A random variable X~Binomial(n=5 , p=0.05)P(X=x)=Cx(0.05)x(1-0.05)10-x10      ;…

Q: 10 coins are flipped and the results were recorded. Let X be the random variable that determines the…

A: When a coin is flipped there are two possible outcomes HeadH,TailT. When 10 coins are flipped, there…

Q: One card is randomly drawn from a standard deck of 52 cards as shown in the figure belowUsing the…

A: the sample space with 52 digits cards includes with,13 spades13 clubs13 hearts13 diamonds

Q: Find the sample space of tossing 4 coins, 4 coins are tossed. What is the probability that at least…

A: Since , the coin is tossed 4 times. Our aim is to find the probability that at least 2 are heads and…

Q: Can 7.109 be the probability of an outcome in a sample space? yes no

A: S be a sample space of any random experiment. S contains all possible outcomes. Now, ∀x∈S ,…

Q: Find the probability of winning second prize - that is, picking 5 of the 6 winning numbers - with a…

A: The total number of ways of selecting 6 numbers out of 25 is 25C6.

Q: GC content in Plasmodium falciparum genome is 25%. Assume that each base pair in the genome has…

A: Givenp=0.25n=5x~Binomial(n=5,p=0.25)P(X=x)=(nx)×px×(1-p)n-x ; x=0,1....,n

Q: 40 percent of consumers prefer to purchase electronics online. You randomly select 8 consumers. Find…

A:

Q: A person picks a number between 1 and 2,4236,124. The random variableZassigns the numberpicked to…

A: The random number 1,874,123 is picked.

Q: A national sports equipment co-op is going to conduct a survey of its members. It knows from…

A: It is inferred that each member has the only option of being a "male" (defined as success) or a…

Q: The chance (percentage) of having O-negative blood type is 0.06 (6%). In a class with 35 students:…

A:

Q: 39% adults favor the use of unmanned drones by police agencies. Twelve U.S adults are randomly…

A: Let X denotes the number of U.S. adults who favor the use of unmanned drones by police agencies out…

Q: In a large population, 68 % of the people have been vaccinated. If 4 people are randomly selected,…

A:

Q: sume that 15​% of people are​ left-handed. Suppose 12 people are selected at random. What's the…

A: Given data, people are​ left-handed =15%=0.15 Which means people are right-handed =0.85 n=12 What's…

Q: In the continent of Africa, it has been determined that an average of four (4) wars break out per…

A: Given,Average of four (4) wars break out per month. That is, 4 wars break out per month.We need to…

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.