eighteen old batteries, seven of which are totally dead. a) The first two you choose are both good. b) At least one of the first three works. c) The first four you pick all work. d) You have to pick five batteries to find one that works. a) The probability that the first two you choose are both good is (Round to three decimal places as needed.)

Q: 60% of all students at a college still need to take another math class. If 4 students are randomly…

A: Givenp=0.60n=4x~Binomial(n=4,p=0.60)P(X=x)=(nx)×px×(1-p)n-x ; x=0,1...,n

Q: A B C TOTAL MALE 7 10 19 36 FEMALE 20 4 14 38 TOTAL 27 14 33 74   If one student was chosen at…

A:

Q: Each day on the way to work, Zaphod brings in a cup of coffee. Each day the probability that he…

A: Given :  Each day on the way to work, Zaphod brings in a cup of coffee. Each day the probability…

Q: An urn contains 12 different stones of all the same shape.  Eight of the stones are red, and four…

A: We can pick first stone in 12 ways and second stone again in 12 ways. (because with replacement) So…

Q: A pair of balanced dice is rolled once and the numbers on the top of the dice are observed. a.…

A: Given: A pair of balanced dice is rolled and the numbers on the dice are noted.

Q: Assume that two marbles are drawn without replacement from a box with 1 blue, 3 white, 2 green, and…

A:

Q: Two cards are selected from a standard deck of 52 playing cards. The first card is not replaced…

A: Total Cards in deck = 52 Number of club in the deck = 13 Number of spade in the deck= 13 Probability…

Q: A financial services committee had 60 members, of which 10 were women. If 9 members are selected at…

A: a. The probability that 7 men and 2 women are selected is 0.3041 and it is obtained below: From the…

Q: Three balls are selected at random from a bag containing 2 red, 4 orange and 3 green balls. What is…

A: Given,no.of red balls=2no.of orange balls=4no.of green balls=3Total no.of balls=9

Q: Questions 8-13

A: Hello there! there are more than one question. According to our policies we cannot answer more than…

Q: 30% of all college students major in STEM (Science, Technology, Engineering, and Math). Round your…

A: answer By using given data,

Q: Exactly 2 of them need to take another math class.  b. At most 2 of them need to take another math…

A: Given that  n = 5 , p = 71% = 0.71 , q = 1 - p = 1 - 0.71 = 0.29 X ~ Binomial (n = 5 , p = 0.71) X:…

Q: Which would be the appropriate command in Excel to calculate the following? What is the probability…

A: Given: n = 13 x = 6 p = 0.80

Q: A spinner of a board game can land on any one of three regions​ labeled: A,​ B, and C. If the…

A: Probability of an event is the ratio of number of favourable event and total number of events. It is…

Q: wo coins are flipped. Find the probability that the first coin land on tails and the second coin…

A: as we know for independent events P(A and B) = P(A)*P(B)

Q: Question 12 At a drug rehab center 35% experience depression and 30% experience weight gain. 13%…

A: Dear student according to guidelines we solve only first three subparts of the question and post…

Q: A card is drawn from a standard deck of 52 playing cards. Find the probability that the card is an…

A: Given A card is drawn from a standard deck of 52 playing cards.

Q: Assume that you select two 4-digit numbers at random from the set of consecutive integers from 0000…

A: Let x denote the random variable. The random X takes two values : I) 600 :when both the number are…

Q: a. List the possible outcomes. O A. red/blond and blond / red O B. red/ red, red/blond, blond/ red,…

A:

Q: Answer the following questions in a separate sheet of paper then send a picture of your answer 1.…

A: Comment: As per the our company guidelines we are supposed to answer only one question. Kindly…

Q: Suppose that a current die is rolled two consecutive times. be: A: = "the sum of the results…

A:

Q: Which of the following cannot be a probability? O a. 2/9

A: Conditions for valid probability: Probability value is always positive.. Probability value is lies…

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.