A box contains 30 calculators, 8 of which are defective. 8 calculators are selected at random from the box. Write your answers in the first box as a simplified fraction What is the probability that all of the selected calculators are defective? What is the probability that none of the selected calculators are defective?

Q: A quiz consists of 6 multiple choice questions. Each question has 4 choices. A student who forgets…

A: Let X=the number of correct questions n=number of trials=6 p=probability of getting the correct…

Q: Suppose you have decided to play the lottery in a state where you choose 6 numbers from 1 to 36. If…

A: N = Universe = Number of ways to select 6 numbers from 1 to 36 M = Successful cases = Number of…

Q: A deck of cards contains 10 orange cards and 3 purple cards. What is the probability that a card…

A: Given,no.of orange cards=10no.of purple cards =3total no.of cards=13

Q: Time spent using e-mail per session is normally dis- tributed, with µ = 8 minutes and o = 2 minutes.…

A: Note Hi, thank you for the question. As per our company guideline we are supposed to answer only…

Q: At a hot air balloon festival, Brooke made note of how many passengers were in each balloon and the…

A: Given,   Blue Yellow TOTALS 1 passenger 2 1 3 2 passenger 4 6 10 TOTALS 6 7 13

Q: marbles ected from the box, what is the probability t Jacer

A: Red = 14 white = 28 blue = 33 total = 75 what is the probability that it is not blue

Q: A box contains 5 red marbles, 6 white marbles, and 8 blue marbles. If a marble randomly selected…

A: Given that Red marble = 5 White marble = 6 Blue marble = 8 Total marble = 6 + 5 + 8  = 19

Q: A jar contains 3 white marbles, 4 orange marbles, 6 yellow marbles, and 5 black marbles. If a marble…

A: A jar contains number of marbles  3 white, 4 orange, 6 yellow, anf 5 black marbles total number of…

Q: Suppose you have 10 tennis balls and you randomly pick some number of them. What is the probability…

A: Given the event that there are 10 tennis balls and one randomly pick some number of them.

Q: Suppose you receive a bouquet of flowers that contains 7 red roses, 12 white daisies, 2 yellow…

A: The first step in solving this problem is to determine the total number of flowers in the bouquet.…

Q: A bag contains 2 red marbles, 5 green marbles, and 7 blue marbles.  You randomly draw a handful of 4…

A:

Q: At a hot air balloon festival, Chandler made note of how many passengers were in each balloon and…

A:

Q: A student takes a four-question, True or False quiz and guess at every answer. What is the…

A:

Q: What is the probability of correctly predicting the first four runners to complete the race, in the…

A:

Q: A quiz consists of 10 multiple-choice questions. Each question has 5 possible answers, only one of…

A: Given Data: The number of multiple-choice question is: n=10 The total  number of possible answers…

Q: What is the probability of rolling a 20-side number cube to a number that is a prime or even ? a-…

A: Probability = number of Favourable event/ total number of possible outcomes

Q: Meredith draws a six from a standard deck of 52 cards. Without replacing the first card, she then…

A:

Q: A group of people were asked if life exists elsewhere in the galaxy. 270 responded "yes", and 478…

A:

Q: you are dealt two cards successively (withouth replacement) from a shuffled deck of 52 playing…

A: From the given information we want to find the probability of first card is King and second card is…

Q: 2 In a certain normal distribution, 1,25%. öf the area lies to the left. of 42 and 1.25% lies to the…

A: Given, The distribution is normal. 1.25% of the area left to the 42 and 1.25 of the area right to…

Q: A fair die is rolled five times. A 5 is considered "success," while all other outcomes are…

A: roll a fair die five timessuccess : Roll a 5P(getting 1 success) = ?

Q: A test has four true-false questions. A completed test paper is selected at random and the four…

A: Note that each questions are independent of each other. Now a question has two options True / False.…

Q: ne which numbers could not represent the probability of an event

A: Given that  Numbers which could not represent the probability of an event.   We know that…

Q: d. Between 3 and 11 (including 3 and 11) of them live in poverty.

A: given data  P(lives in poverty) = p = 0.08sample size n = 48x = no. of americans live in…

Q: If you know the names of the remaining two students in the spelling bee, what is the probability of…

A: From the provided information, the number of students in the spelling bee is 2. The total number of…

Q: A bag contains 2 gold marbles, 10 silver marbles, and 26 black marbles. You randomly select one…

A: Given data, No of gold marbles=2 No of silver marbles=10 No of black marbles=26 Total no of…

Q: A bowl contains 6 yellow, 5 blue, and 9 red balls. One ball is removed from the box and it is not…

A: In this context, it is given that the box contains 6 yellow, 5 blue, and 9 red balls. The event of…

Q: There are ten female board members and twenty male board members. How many ways are there to make a…

A: Ways to make a committee of ten board members =  30C10=30!20!×10!=30045015

Q: A bag contains 1 gold marbles, 6 silver marbles, and 30 black marbles. You randomly select one…

A:

Q: A chest of pirate treasure has 8 fake coins, 6 plastic jewels, 5 painted stink bombs, and 2…

A: Here we have to find the probability.

Q: If you know the names of the remaining seven students in the spelling bee, what is the probability…

A: Obtain the probability of randomly selecting an order and getting the order that is used in the…

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.