A student in a History class blindly guesses his answers on the final exam which consists of 3. twenty multiple choice questions with five answers. Answers from the questions do not rely on any other answers. a) State four conditions to be binomial probability distribution mentioned in the lecture. b) Explain in detail why this is a binomial distribution problem using part a). Find the mean. probability c)

Q: A test was given to a group of students. The grades and gender are summarized belo A B Total Male 20…

A: Given table    A B C Total Male 20 9 15 44 Female 7 16 18 41 Total 27 25 33 85

Q: A committee of 4 is being formed randomly from the employees at a school: 4 administrators, 30…

A: Combination:   It is nothing but the selection of objects where the order of selection is not…

Q: A group of people were asked if life exists elsewhere in the galaxy. 140 responded "yes", and 324…

A: It is given that, 140 responded "yes" and 324 responded "no" about life exists elsewhere in the…

Q: test is conducted with 25 multiple choice questions. Each question has 3 possible choices, so the…

A: n=25,p=13Let p be the probability of student gets any of the questions right.X be the number of…

Q: 2. From a box containing 4 dimes and 2 nickels, 3 coins are selected at random without replacement.…

A: To find the probability distribution for the total T of the 3 coins, we need to consider all…

Q: Chris can only afford to take one vacation. His 2 choices are A = Argentina, and B = Bermuda. The…

A: The question is about probability.Given :P ( A ) = 0.401P ( B ) = 0.423

Q: Give the probability in a decimal form( correct to two decimal places).  Last semester,  a certain…

A: It is given that the total number of grades is 243.

Q: The given table classifies auto accidents by survival status (S=survived, D = died) and seat belt…

A:

Q: Answer all parts please and thank you :)

A: Solution According to guidelines we solve three subpart

Q: A public park in Brooklyn occupies a rectangular plot of land measuring 239 m by 127 m. The park has…

A: what is the probabilty that it will land in the swimming pool

Q: National bank receives on average 30 customers in a day. 1. Find the probability of getting between…

A:

Q: In a statistics class of 42 students, there were 11 men and 31 women. Six of the men and seven of…

A:

Q: d. What is the probability that four or more of the LED light bulbs are defective? The probability…

A: We have given thatp = 0.04n = 20X ~Binomial(n, p) X ~ Binomial (20, 0.04)The PMF of the Binomial…

Q: The probability of rolling two dice and getting a total of 7 is 1/6 . Which of the following…

A: There are 36 possible outcome of rolling two dice simultaneously Let S be the sample space of…

Q: A physics class has 50 students. Of these, 18 students are physics majors and 16 students are…

A: From the given information, total number of students n(S) = 50. Number of physics majors n(Physics)…

Q: A school newpaper reporter decides to randomly survey 13 students to see if they will attend Tet…

A: Provided information is, a school newspaper reporter decides to randomly survey 13 students to see…

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

A: Total number of cards = 52 The probability of getting a diamond card = 13/52 The probability of…

Q: When rolling a pair of dice, what is the probability of getting a sum less than 13.

A:

Q: A local county has an unemployment rate of 6.5%. A random sample of 17 employable people are picked…

A: Proportion that local county has a unemployment rate(p)=0.065sample size(n)=17

Q: Find

A: Probability = X/Nwhere:X = the number of favorable outcomesN = the number of possible outcomes A)…

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

A:

Q: Please solve the all sub parts a,c,c im needed max in 30 minutes thank u Students of the Civil…

A: Here first we make the contingency table by calculating the number of female student for the given %…

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

A: We have to find  probability..

Q: A test was given to a group of students the grades and gender are summarized below    a b c total…

A: Given data is   a b c total  male  9 4 3 16 female  5 10 16 31 total  14 14 19 47

Q: A local county has an unemployment rate of 7%. A random sample of 16 employable people are picked at…

A: the sample size n=16the probability of unemployment in the county p=0.07the probability of…

Q: A group of people were asked if giving children sugar makes them hyper. 621 responded "Yes", and 650…

A: Probability:   The ratio of the number of favorable outcomes to certain event and total number of…

Q: A committee of 4 people is to be randomly selected from a group of 9 people, including Pedro.  The…

A: It is given that, There is a group of 9 people including Pedro.  We have to form a committee of 4…

Q: Find the probability of matching three of the four winning numbers. (ROUND YOUR ANSWER TO 8 DECIMAL…

A:

Q: The Wilson family had 6 children. Assuming that the probability of a child being a girl is 0.5, find…

A: Let n be the number of children's in a family = 6 Let p be the probability of a child being a girl =…

Q: Question 1 The mean number of citizens voting in one of the provinces on the election day is 10 per…

A: As per our guidelines we are supposed to answer only one question kindly post the remaining…