Question

There are 30 students in a class, 16 students can speak French,
21 students can speak Spanish. What is the probability that a randomly chosen student can speak Spanish
only?

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Math
Probability

Basic Probability

Related Probability Q&A

Find answers to questions asked by students like you.

Q: 17. Prison Education In a federal prison, inmates can select to complete high school, take college c...

A: There are total (53+107+450+27+32+367)= 1036 prisoners in the prison. (450+367)=817 prisoners do not...

Q: Consider a lottery game that is played by drawing four white balls out of a drum of 59 white balls (...

A: Click to see the answer

Q: A group of 100 patients has been selected for a clinical trial of the efficacy of two drugs, X and Y...

A:  

Q: In a study examining the effect of alcohol on reaction time, Liguori and Robinson (2001) found that ...

A: The null and alternative hypotheses are; H0: µ = 400. That is, the sample mean is not sufficient to ...

Q: Product testing. To test a new car, an automobile manufacturer wants to select 4 employees to test-d...

A: We will use the complement property of probability P( selecting at least 1 union employee) = 1 - P( ...

Q: 2) Compute the probability of tossing a six-sided die and getting a 7.

A: Click to see the answer

Q: What is the probability of each of the following events: • What is the probability that a card chose...

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and s...

Q: Consider the data given in the table below. Age Republican Democrat Independent Other Total 18–...

A: Using the given information, The number of elements in the sample space for choosing a voter from th...

Q: Giving a test to a group of students, the grades and genders are summarized below. Total Male 16 13 ...

A: There are 36 males and total 27 students received a grade of "A". 16 male students received grade A....

Q: According to TMUSS Quarterly (Totally Made-Up Sports Statistics) April 2017, the probability that th...

A: Let us denote: Tampa Bay Buccaneers will score a touchdown on their opening drive = A  the defense w...

Q: Two hundred people apply for three jobs. 80 of the applicants are women.(a) If three persons are sel...

A: From the given information, Total number of candidate (n) =200 Number of women (x) = 80 Number of me...

Q: A time study was conducted by the production manager of a technology company to determine how much t...

A: a): The probability that the selected person will be able to complete the task in 5 min or less is a...

Q: Using Lease Square method to find the linear model that best fit the following data:

A: GivenThe best fit linear model will be in the form of y = mx + ba)All equations are shown below by p...

Q: Which of the following critical values is appropriate for a 98% confidence level where n= 7, o = 27,...

A: The correct option is A. Zα/2=2.33.

Q: Parts 5, 6, 10 please

A: 5) Let us denote: A= Codeword begins with 00  B= Codeword ends with 00 If the code words begin with ...

Q: determine the (a) winning coalitions; and for each winning coalition, (b) determine the critical vot...

A: Given data Voting System is {28: 19,6,4,2} Banzhaf power index of a voter v, symbolized by BPI(v), i...

Q: Data collected at an airport suggests that an exponential distribution with mean value 2.545 hours i...

A: For exponential distribution    

Q: A survey on British Social Attitudes asked respondents if they had ever boycotted goods for ethical ...

A: Given: p = Proportion of respondents have boycotted goods for ethical reasons p = 0.23 1)The sample ...

Q: Twelve friends are to arrange themselves in a straight line for a group photo.  How many ways can th...

A: There are 12 spots for 12 friends The first position can be filled in 12 ways, second in 11 ways, th...

Q: 5. A tray contains 36 doughnuts: 17 cake, 12 glazed, and 7 jelly-filled. Victoria randomly selects o...

A: Since she is eating the first piece so this event is without replacement.  From 36 doughnuts we can ...

Q: A five-card poker hand is dealt from a standard deck of cards.  Find the probability that the hand c...

A: It is given that a five-card poker hand is dealt from a standard deck of cards. Since, in a standard...

Q: bility--And, Conditional Suppose a jar contains 9 red marbles and 24 blue marbles. If you reach in t...

A: Solution: From the given information, a jar contains 9 red marbles and 24 blue marbles. The total nu...

Q: See picture also   The odds in favor of Frank McKinnis winning a hot dog eating contest are 5 :7.   ...

A: According to the provided information, The odds in favor of Frank McKinnie winning a hot dog eating ...

Q: Find the probability for the experiment of tossing a six-sided die twice. The sum is odd or prime.

A: It is given that the experiment of tossing a six-sided side twice. Thus, the sum of dies would be:

Q: Wattage Good Defective Total A quality control inspector is checking a sample of lightbulbs for defe...

A: We use the conditional probability formula  

Q: A snack-size bag of M&Ms candies contains 14 red candies, 10 blue, 9green, 13 brown, 3 orange, a...

A: According to the provided information, there are 14 red candies, 10 blue, 9 green, 13 brown, 3 orang...

Q: A test developed to measure ESP involves using Zener cards. Each card shows one of five equally like...

A: Given that, n = 100, p = 1/5 =0.2 The mean and standard deviation values are, The probability of co...

Q: A standard 52 card deck has 13 cards from each of 4 suits. The 13 cards have face value 2 through 10...

A: Solution: There are 4 suits in the standard 52 card deck. Each suit has 13 cards. Here, the two card...

Q: #53 please

A: Click to see the answer

Q: 9. A study of the post treatment behavior of a large number of drug abusers suggests that the likeli...

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and s...

Q: The table summarizes results from 988 pedestrian deaths that were caused by automobile accidents. Dr...

A: Total (231+611)= 842 cases involved drivers that were not intoxicated.  We can pick two cases from t...

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

A: Given that 8 stones are red and 4 are blue. So, total (8+4)=12 stones.   We can pick the first stone...

Q: The weight of a small Starbucks coffer is normally distributed random variable with a mean of 365 gr...

A: a) b)  

Q: The table below summarizes a survey involving the relationship between living arrangement and grade ...

A: If the student lives off the campus then he can live at home or at an apartment  Total number of stu...

Q: Please explain this well. Where does the 16 come from? Where does (1/8) come from? Please explain th...

A: We will need substitution  Substitute this in the integral  

Q: List all subsets of the given set. {yes, no, undecided}{yes}, {no}, {undecided}, {yes, no}, {yes, un...

A: {yes, no, undecided} has three elements in it.  So there will be 23=8 subsets of it.  Only second op...

Q: Use the sample data and confidence level given below to complete parts (a) through (d). In a study o...

A: Given that, (a) The point estimate of the population proportion is, Critical values: By using the ...

Q: In probability, an event is any particular outcome or group of outcomes. The set of all possible sim...

A: In probability, an event is any particular outcome or group of outcomes. The set of all possible sim...

Q: Problem 2. Find P[K < E[K]] when K is Geometric (2/5). K is Binomial (8, 1/4). K is Poisson (6). K i...

A: Given information a) K is geometric (2/5) We need to find P (K &lt; E(K)) P = 2/5 In geometric distr...

Q: A bag contains three red marbles, two green ones, one lavender one, three yellows, and three orange ...

A: At most one of the yellow ones means 0 or 1 yellow ones. There are 3 yellow marbles.  And (3+2+1+3)=...

Q: ****** 2. The variance in a production process is an important measure of the quality of the process...

A: To test: Whether there is a significant difference between the variances in the bag weights for two ...

Q: David estimates the following probabilities for different grades in a Finance course: Grade         ...

A: The sum of the probabilities must be equal to 1.  So, P(A) = 1 - (0.33+0.25+0.2+0.03) = 1-0.81 =0.19...

Q: An automobile manufacturer produces a certain model of car. The fuel economy figures of these cars a...

A: Obtain the probability that one of these cars will have an mpg of more than 37.5. The probability th...

Q: A. The odds in favor of an event are given. Compute the probability of the event. (Enter the probabi...

A: Solution: A. From the given information, the odds in favor of an event are 2:9. Then, the probabilit...

Q: Suppose the force acting on a column that helps to support a building is a normally distributed rand...

A: We first write P(|X − 11| ≤ 1) without using absolute sign  

Q: According to U.A government statistics, mononucleosis (mono) is four times more common among college...

A: From the table, we see 67 students have mono.  Of those 67 students, 35 students have a negative blo...

Q: Ly A Moving to another question will save this response. Question 2 A single coin is tossed. What ar...

A: If a single coin is tossed then the possible outcomes are head and tail. So total 2 outcomes. So fav...

Q: You may need to use the appropriate appendix table or technology to answer this question. In a surve...

A: Using these we find:  

Q: yATTU, COnatTonal In a large population, 64 % of the people have been vaccinated. If 3 people are ra...

A: Click to see the answer