A biologist experiments with a sample of three sharks and four stingrays. She wants to randomly select two of the marine organisms for additional study. Find the probability that the first selected organism is a shark, and the second selected organism is also a shark. Assume there is no replacement of organisms.

Q: A box contains 12 chocolates: 5 dark chocolates, 4 milk chocolates, and 3 white chocolates. If two…

A:

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: A company that manufactures computer components has a 3% defective rate. If 12 components are…

A: Givenp=3%=0.03n=12Let "x" be getting no.of defective…

Q: An urn contains 5 white balls and 6 red balls. A second urn contains 8 white balls and 4 red balls.…

A: Given data: The numbers of white balls in the first urn are w1=5. The numbers of red balls in the…

Q: Player V and Player M have competed against each other many times. Historical data show that each…

A: The objective of the question is to find the probability that a match between Player V and Player M…

Q: At a local college, 76 of the male students are smokers and 114 are non-smokers. Of the female…

A:

Q: Evie was doing an experiment for her biology class. She determined that if she randomly selected a…

A: Given that, Probability ( Brown hair), P(BH)= 0.5 Probability (Blue eyes), P(BE)= 0.57 And…

Q: In a box of assorted cookies, 39% contain chocolate and 16% contain nuts. Of those, 6% contain both…

A:

Q: operations in Arstotzka (QA) and Stardew (Qs). The proportion of biomes sent to Artotzka is 0.32,…

A: *answer:

Q: Find the probability that a randomly selected voter voted for Bob Jones.

A: For a recent local election, 55% of the voters were Democrats. Of the Democrats, 80% voted for John…

Q: A physics class has 50 students. Of​ these, 13 students are physics majors and 18 students are…

A: It is given that the number of students in physics class is 50. Among that the physics majors are 18…

Q: A physics class has 50 students. Of​ these, 16 students are physics majors and 12 students are…

A:

Q: A teacher of a class of 25 students is trying to decide whether her class will play soccer, or…

A:

Q: A physics class has 50 students. Of​ these, 13 students are physics majors and 15 students are…

A: Given that, Total number of students = 50Number of physics major students = 13Number of female…

Q: From a group of 4 TV critics and 8 movie critics, we randomly select 5 people. If at least 2 movie…

A: Solution-:l We have 4 TV  critics and 8 movie  critics We randomly select 5 people If at least 2…

Q: In a large population, 55% of the people have been vaccinated. If 3 people are randomly selected,…

A: Let "X" be the people that have been vaccinated.

Q: Steve has 12 biscuits in a tin. There are 5 digestive and 7 chocolate biscuits. Steve takes two…

A: Given that, Total number of biscuits = 12 5 digestive biscuits and 7 chocolate biscuits We to find…

Q: A bag has 12 different-colored marbles: 4 green, 5 blue, 1 yellow, and 2 orange. You draw a marble…

A: Given that,  4 green, 5 blue, 1 yellow, and 2 orange Marbles.  Total number of marbles = 4+5+1+2 =…

Q: An urn contains eight white balls and two red balls. A second urn contains two white balls and a red…

A: Here Take Probability of first Urn=P(F) Probability of second Urn=P(S) Probability of Red=P(R)…

Q: An urn contains five white balls and six red balls. The second urn contains eight white balls and…

A: It is an important part of statistics . It is widely used .

Q: An ice chest contains six cans of apple juice, eight cans of grape juice, four cans of orange juice,…

A: The objective of this question is to find the probability of a specific sequence of events…

Q: find the probability that only three have traveled to Italy.

A: Let p be the probability that a tourist have traveled to Italy. Given that p = 0.55 Let X denotes…

Q: A science class has 3 girls and 9 boys in seventh grade and 5 girls and 3 boys in eighth grade. The…

A: Given In seventh grade=3 girls,9 boys In eighth grade=5 girls,3 boys

Q: A tennis club consists of 10 boys and 8 girls, of which 4 boys and 2 girls are randomly selected to…

A: The objective of the question is to find the probability that Aiden, Brian, and Diana are chosen to…

Q: A cooler contains 100 ice cream bars. There are 30 Vanilla​ bars, 20 Mint Chocolate Chip​ bars,10…

A: Given :- Number of ice cream bars a cooler contains = 100. Number of vanilla bars = 30 Number of…

Q: A city uses three pumps to carry water from a river to a reservoir. Pumps A and B are new, and have…

A: As per the honor code we are entitled to solve only 3 subparts at a time so I am providing the same.…

Q: From a group of 10 choldren, a team of 5 (the red team) is randomly chosen. The remaining 5 children…

A: Given from a group of 10 children, a team of 5 children is randomly chosen. The remaining 5 children…

Q: A golf ball is selected at random from a golf bag. If the golf bag contains 8 yellow ​balls, 6 brown…

A: It is given that the number of yellow balls is 8, brown balls is 6 and black balls is 6.

Q: A building contractor buys 65% of his cement from supplier A and 35% from supplier B. A total of 85%…

A: Let us denote : A= the event that the bag is from supplier A B= the event that the bag is from…

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.