A jar contains 7 pennies, 5 nickels and 3 dimes. A child selects 2 coins at random without replacement from the jar. Let X represent the amount in cents of the selected coins. Be very precise with your answers.  Find the probability X = 11 cents.    Find the probability X = 15 cents.    Find the probability X = 20 cents.

Q: A baseball player has a batting average of 0.22. What is the probability that he has exactly 6 hits…

A: Answer: Given that: p= 0.22 , n= 7 now will use Binomial probability P(X=x)=nx*px*(1–p)n–x,where…

Q: When 3 dice are rolled, find the probability of getting a sum of 8. Enter your answer as a fraction…

A: Given3 dice are rolled

Q: The probability that a spark plug is defective is 35%. Suppose that a person buys 7 spark plugs.…

A:

Q: The probability that an individual is left-handed is 0.190. In a class of 17 students, what is the…

A: It is given that,  The probability that an individual is left-handed is 0.190  i.e. p=0.190 We have…

Q: You are ordering a hamburger and can get up to 7 toppings, but each topping can only be used once.…

A: 4 toppings can be chosen from 7 by 7C4 Ways 7C4 =

Q: You believe that there is a 30% chance you will earn an A in your English class, a 20% chance that…

A: let A be the event of earning A in english class P(A)=0.30 B be the event of earning A in maths…

Q: Find the indicated probability. Round to the nearest thousandth.In a blood testing procedure, blood…

A: The probability that individual sample test is negative is, Pn=1-0.11=0.89

Q: Alex makes 20% of his hockey goals that he attempts.  For a practice, he likes to shoot goals at the…

A:

Q: You order 13 pizzas, five that are cheese and eight that are mushroom. They arenot labelled on their…

A: There are total 13 boxes.  We can pick any 5 boxes from those 13 boxes in 13C5 ways.    If we want…

Q: A jar contains 4 pennies, 3 nickels and 6 dimes. A child selects 2 coins at random without…

A: 4 pennies 3 nickels 6 dimes ______________ 13 total coins   select 2 coins at random without…

Q: d. How many attempts should he expect to have before he makes a basket?

A:

Q: Roll a pair of dice 10 times. Determine the probability of having exactly

A: Given that the pair of dice is rolled 10 times. When rolling pair of dice, the possible outcomes for…

Q: A jar contains 4 pennies, 6 nickels and 6 dimes. A child selects 2 coins at random without…

A: There are totally 14 coins in a jar in which 4 are pennies, 6 are nickels, and 6 dimes. The child…

Q: In a multiple-choice exam, there are 30 questions. There are 5 answers for each question and only…

A: Binomial distribution is given by

Q: In a box there are 4 red, 4 blue and 3 white marbles. Two marbles are selected at random and the…

A:

Q: please, need solution  for part D. For the group of 45 patrons, find the probability that the…

A: Sample size n=45

Q: Can the value 2 be a probability?

A: Valid conditions for probability: The probability is non-negative. That is, the probability is…

Q: A quick quiz consists of a true/false question followed by a multiple-choice question with 6…

A:

Q: You roll a fair six-sided die twice. Find the probability of rolling a 3 the first time and a number…

A: From the provided information, A fair six-sided die is rolled twice. P (rolling 3) = 1/6 P (rolling…

Q: Julia has eaten 12 doughnuts over the past few months. Of those doughnuts, 2 were maple doughnuts.…

A:

Q: Find the probability X = 2 cents.    Find the probability X = 6 cents.    Find the probability X =…

A:

Q: The probability that a famous basketball player will score a basket on the free throw line in 60%.…

A: Here, n = 13 and p = 0.60.

Q: A baseball player has a batting average of 0.355. What is the probability that he has exactly 4 hits…

A:

Q: The probability of having a child that is left handed is10%. If three children are randomlyselected,…

A: From the given information we want to find the probability that at least one child is left handed.

Q: Katherine works at a grocery store and is assigned their daily duty by the shift manager in charge.…

A:

Q: Roll 12 dice simultaneously, and let X denote the number of 6's that appear. Find the probability of…

A: Let X be a random variable denotes the number of 6's. Here, X~Bin12,16. Calculate the probability of…

Q: Solve correctly. I will rate accordingly.   An urn contains four yellow balls and two green balls.…

A:

Q: ou roll a fair six sided die twice. Find the probability of rolling a 1 the first time and a number…

A: n(S) = 36 Let A = rolling a 1 and then greater than 5 = {(1,6)} n(A) = 1

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.