Mrs. Burke's physics class has 99 students, classified by academic year and gender, as illustrated in the following table. Mrs. Burke randomly chooses one student to collect yesterday's work. What is the probability that she selects a male, given that she chooses randomly from only the juniors? Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth. Mrs. Burke's Physics Class Classification Males Females Freshmen 7 9 Sophomores 6 17 Juniors 15 12 Seniors 13 20

Mrs. Burke's physics class has 99 students, classified by academic year and gender, as illustrated in the following table. Mrs. Burke randomly chooses one student to collect yesterday's work. What is the probability that she selects a male, given that she chooses randomly from only the juniors? Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth. Mrs. Burke's Physics Class Classification Males Females Freshmen 7 9 Sophomores 6 17 Juniors 15 12 Seniors 13 20

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Classification	Males	Females
Freshmen	7	9
Sophomores	6	17
Juniors	15	12
Seniors	13	20

Similar questions

Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 11 12 6 29 Female 15 9 13 37 Total 26 21 19 66 If one student was chosen at random,find the probability that the student was male. Give your answer as a fraction or decimal.
In an experiment, college students were given either four quarters or a $1 bill and they could either keep the money or spend it on gum. The results are summarized in the table. Complete parts below. Purchased Gum Kept the Money Students Given Four Quarters 33 13 Students Given a $1 Bill 15 30 a. Find the probability of randomly selecting a student who spent the money, given that the student was given four quarters. b. Find the probability of randomly selecting a student who kept the money, given that the student was given four quarters. c. What do the preceding results suggest?choose below A. A student given four quarters is more likely to have kept the money than a student given a $1 bill. B. A student given four quarters is more likely to have kept the money. C. A student given four quarters is more likely to have spent the money than a student given a $1 bill. D. A student given four quarters is more…
A statistics teacher gives a 10-question multiple-choice pop quiz with five answer choices per problem. Brandon is not prepared and has to guess the answer for each of the 10 questions. The teacher explains that students will receive a free homework pass if they answer at least five questions correctly. What is the probability that Brandon will earn a free homework pass? A. 0.006 B. 0.026 C. 0.033 D. 0.967 E. 0.994
A certain student is equally likely to choose to major in medicine, engineering or accounting in college. What is the probability that the student will choose to major in: note : Answers should be in either decimal (4 decimal places), fraction (lowest terms) or percent (rounded to 2 decimal places) form. 1. medicine? 2. accounting? 3. engineering or medicine?
Yesterday you set the player to randomly play 75 songs. The list below shows the numbers of each type of music you heard. Country—15 Rap—10 Pop—20 Classical—5 Rock—25 Based on yesterday’s data, what is the probability the next song the player randomly selects will be a classical song?
Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 9 18 15 42 Female 3 6 8 17 Total 12 24 23 59 If one student was chosen at random,find the probability that the student was male. Give your answer as a fraction or decimal.
Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 12 18 2 32 Female 7 5 15 27 Total 19 23 17 59 If one student was chosen at random,find the probability that the student got a C. Give your answer as a fraction or decimal.
A football team consists of 19 each freshmen and sophomores, 15 juniors, and 18 seniors. Four players are selected at random to serve as captains. Find the probability of the following. Enter your answers as fractions or as decimals rounded to 4 decimal places. (a)All 4 are seniors. P(4 seniors)=
1. Use this table for the following questions: Female Male TotalShort Hair 20 40 60 Long Hair 30 10 40 Total 50 50 100 a. Complete a total probability table.b. Complete a row probability tablec. Complete a column probability table.d. The probability that a student does not have long hair. _________e. The probability that a student is male or has short hair. ________f. The probability that a student is a female and has long hair. _________g. The probability that a student is male, given that the student has long hair. _________h. The probability that a student has long hair, given that the student is male. _________i. Of all the female students, the probability that a student has short hair. ________j. Of all students with long hair, the probability that a student is female. _________k. The probability that a student is female or has long hair.…
A committee consists of 30 males and 13 females. If 3 persons are selected at random, what is the probability that 1 will be male and 2 will be female? A. 0.0705 O B. 0.221O O C. 0.1896 O D. 0.3333
Seven students: Ann, Bob, Carol, Dan, Eve, Frank, and George, are randomly lined up for a picture. What is the probability that Dan and Eve are standing next to each other (in either order)? nothing Round your answer to 4 decimal places, if necessary.
Suppose you have the numbers 100–999 written on individual pieces of paper and placed in a hat. If you draw a number from the hat, what is the probability that all three digits are different? (State your answer as a probability: a fraction, decimal, or percent).