Latanya recorded the grade-level and instrument of everyone in the middle school School of Rock below. Seventh Grade Students Instrument # of Students Guitar 2 Bass 2 Drums 11 Keyboard 15 Eighth Grade Students Instrument # of Students Guitar 6 Bass 15 Drums 10 Keyboard 9 Based on these results, express the probability that an eighth grader chosen at random will play the keyboard as a fraction in simplest form.

Latanya recorded the grade-level and instrument of everyone in the middle school School of Rock below. Seventh Grade Students Instrument # of Students Guitar 2 Bass 2 Drums 11 Keyboard 15 Eighth Grade Students Instrument # of Students Guitar 6 Bass 15 Drums 10 Keyboard 9 Based on these results, express the probability that an eighth grader chosen at random will play the keyboard as a fraction in simplest form.

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

Latanya recorded the grade-level and instrument of everyone in the middle school School of Rock below.

Seventh Grade Students

Instrument	# of Students
Guitar	2
Bass	2
Drums	11
Keyboard	15

Eighth Grade Students

Instrument	# of Students
Guitar	6
Bass	15
Drums	10
Keyboard	9

Based on these results, express the probability that an eighth grader chosen at random will play the keyboard as a fraction in simplest form.

AI-Generated Solution

AI-generated content may present inaccurate or offensive content that does not represent bartleby’s views.

Unlock instant AI solutions

Tap the button
to generate a solution

Click the button to generate
a solution

SEE SOLUTION

Similar questions

In a class of 65 students, 20 are nursing majors, 16 are parents, and 5 of the nursing majors are parents. If one student is randomly selected from the class, find the probability of choosing a nursing major or a parent. Write your answer as a simplified fraction. The probability of choosing a nursing major or a parent is
Suppose you draw two coins from a bag containing 10 quarters, 8 dimes, 6 nickles, and 4 pennies. Find the probability of selecting a nickle then a penny with replacing. Your answer should be in fraction form.
A city council consists of eight Democrats and seven Republicans. If a committee of four people is selected, find the probability of selecting two Democrats and two Republicans. (Type a fraction. Simplify your answer.) G
Find the probability of getting 4 face cards (king, queen, or jack) when 4 cards are drawn from a deck without replacement, Enter your answer as a fraction. P(4 face cards) olo
A bag contains 9 marbles: 2 are green 5 are red and 3 are blue. Chris chooses a marble at random and without putting it back choose another one at random. What is the probability that the first marble is blue and the second is green? Write answer as a fraction in simplest form
Albert attended a music store's banjo sale. He counted the types of banjos and made note of their discounts. 25% off 50% off 4 strings 4 3 5 strings 3 3 What is the probability that a randomly selected banjo has 5 strings given that the banjo is 25% off? Simplify any fractions.
A spinner has 10 equally sized sections, 8 of which are gray and 2 of which are blue. The spinner is spun twice. What is the probability that the first spin lands on gray and the second spin lands on blue ? Write your answer as a fraction in simplest form.
At bedtime, you read three books to your kids, Walker, Michael, and Luke. Together, they have 32 books. If you decide to randomly choose three books, what is the probability that the three you choose will consist of each of their favorite books? Assume they have different favorites. Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth.
A bag has 5 blue marbles, 3 red marbles, and 2 green marbles. We draw two marbles, one at a time, with replacement. What is the probability that both draws are red? Write your answer as a simplified fraction.
On a camping trip, Helen kept a log of the types of snakes she saw. She noted their colors and approximate lengths. 1 foot long 2 feet long Red 1 Bright orange Bright green 2 What is the probability that a randomly selected snake is bright green or bright orange? Simplify any fractions.