After giving a test to a group of students, below is the summary of grades by gender. A B Total Male 18 13 2 33 Female 4 7 17 28 Total 22 20 19 61 If a student is randomly chosen, find the probability that the student is female or earned grade A. Leave your answer as a reduced fraction.

Q: You must make a choice between 4 different brands. Based on the data in the table, which brand has…

A: Brand Breaks within 6 Months Total A 1250 12,400 B 1375 7500 C 450 1400 D 84 230

Q: The probability that a lab passes a health and safety inspection is 97%.  A health and safety…

A: Let X: number of labs.X has binomial distribution because trials are finite, trials are independent…

Q: A quick quiz consists of a multiple-choice question with 5 possible answers followed by a true/false…

A: Given dataMultiple choice questions with 5 possible answers followed by a true and false5 possible…

Q: A poll showed that 50.9% of Americans say they believe that life exists elsewhere in the galaxy.…

A: The given percentage of Americans who are said to believe that life exists elsewhere in the galaxy…

Q: A bowl of candy contains 22 toffees, 26 mints, 41 jujubes, and 58 jellybeans. Richard picks a candy…

A:

Q: Find the indicated probability.  In one town, 39% of all voters are Democrats. If two voters are…

A: From the given information, it is clear thatThe probability that all voters are democrats= 0.39.That…

Q: 12% of all Americans live in poverty. If 31 Americans are randomly selected, find the probability…

A: Note: According to Bartleby expert guidelines, we can answer only first question with their three…

Q: A card is drawn from a well shuffled deck of 52 cards. Find the probability of drawing a facecard or…

A: Given information 52 Cards 13 cards in each suit 4 suits heart, club, diamond and suit No of face…

Q: In a recent survey, 303 out of 350 residents of Salem, MA said they are planning on passing candy…

A: here given ,  303 out of 350 residents of Salem, MA said they are planning on passing candy during…

Q: The lacrosse team has a 55% chance of winning its upcoming games. Find the probability of them…

A:

Q: You roll a six-sided die. Find the probability of rolling: a 5 or a number greater than 3 a number…

A:

Q: A bag contains 9 red chips, 7 blue chips, and 8 green chips. Bobby selects two chips from the bag…

A:

Q: A card is picked from the following cards. Find the probability that the card drawn is purple or…

A: There are total 7 cards. Among them 5 cards are purple or blue. So, n(purple or blue)= 5 n(all)=7…

Q: Bonnie and Kelly are part of a group going to a basketball game. The group has two court-side seats,…

A: Given: court-side seats = 2 upper-level seats = 5 seats in general admission = 4 Total seats =…

Q: You randomly select one card from a 52-card deck. Find the probability of selecting a red card. A.…

A: We have to find probability of getting red card.

Q: A box at a miniature golf course contains 77 red golf balls, 88 green golf balls, and 33 yellow golf…

A: Case (i): It is given that there are 77 red balls, 88 green balls, and 33 yellow balls. The total…

Q: c. Find the probability that a patient randomly selected from the study had cancer OR was on the…

A: (c )   Obtain the probability that a patient randomly selected from the study had cancer OR was on…

Q: Allie plays on the varsity basketball team and makes 79% of her free throws. If she takes 12 shots,…

A: Given : p = 0.79 q = 1 - p = 1 - 0.79 = 0.21 n = 12 we have find P(x = 8) here, x follow a binomial…

Q: Judith runs a stable that boards 18 horses, and 9 of them are palomino. What is the experimental…

A:

Q: Suruchi has $1.64 worth of change in the bottom of her purse.              If she reaches into her…

A: Given: Total number of coins = 12 Number of nickel = 3

Q: Find the probability of choosing an "a" from the word "preparation". O 20% O 18.2% O 5.5% Ⓒ2%

A: Total words in "preparation"=11 Total a in given word=2

Q: A jar on your desk contains thirteen black, seven red, fourteen yellow, and three green jellybeans.…

A: There are totally 37 jellybeans in a jar out of which there are seven red jellybeans, then there are…

Q: You randomly select one card from a​ 52-card deck. Find the probability of selecting the king of…

A: It is known that Number of cards in a deck = 52 Number of king of diamonds = 1 Number of two of…

Q: A jar contains four times as many red marbles as blue marbles. What is the probability of drawing a…

A: Consider that there is total x blue marbles in the jar.

Q: An introductory nursing class has 9 freshman males, 15 freshman females, 8 sophomore males, and 12…

A: Given data, freshman males=9 freshman females=15 sophomore males=8 sophomore females=12 Total =44…

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.