Question

A telephonist claims that he gets 10 calls every five minutes. To demonstrate this to his boss he makes a tape lasting five minutes. What are the probabilities that he gets 

 

No calls in the five minutes 

Less than three calls 

 

Exactly 10 calls

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: Probability Question

A: Consider,A1, A2 and A3 are the event that shows team A winning the first, second and third game win ...

Q: Refer to the sample data for polygraph tests shown below. If one of the test subjects is randomly​ s...

A: To compute the required probability (of not lying)

Q: A committee on community relations in a college town plans to survey local businesses about the impo...

A: Nonresponse rate:In sample surveys, the failure to obtain information from a designated individual f...

Q: The Senate in a certain state is comprised of 53 Republicans, 44 ​Democrats, and 33 Independents. Ho...

A: The number of ways to select 33 Republicans is 53C33.The number of ways to select 22 Democrats is 44...

Q: Construct a 95% confidence interval of the population proportion using the given information x = 75,...

A: Introduction:The 100 (1 – α) % confidence interval for the population proportion, π is: (p – (zα/2­)...

Q: The probability of a snowstorm on Thanksgiving is 0.40 and the probability of a snowstorm on Christm...

A: Independent Events:Two events are said to be independent if occurrence of one event does not affect ...

Q: A planning committee for a major development project must consist six members. There are eight archi...

A: Introduction:If the planning committee of 6 members must contain at least 3 engineers, it would be p...

Q: Step 1: License plates in Florida have the form A12BCD, that is, a letter followed by two digits fol...

A: Form of License plates A12BCD Total alphabetical letters are 26 A-ZTotal numerical are 0- 9

Q: the mean number of B's on a test is 8 with a standard deviation of 1.5. find  The probability of les...

A: Consider a random variable X which follows normal distribution indicating the number of B’s on a tes...

Q: Suppose that X and Y have a joint density function given by e-(a+y)r,y> 0, otherwise f(x, y) (a) Com...

A: From the provided information, the joint density function is,

Q: Problem 1. (S pts.) A survey of 127 patients in a particular hospital determined that 54% of them fe...

A: Part (a): Determine the 95% confidence interval for this survey. Total number of patient (n) = 127  ...

Q: The speed with which utility companies can resolve problems is very important. GTC, the Georgetown T...

A: It is given that the probability of resolving a customer’s problem is 0.70. Assuming that resolving ...

Q: The question is 6.12. A, B, C, and D go to 6.12 but just fall on a different page. Part D. also corr...

A: As per the questionThe possible values of X are as followsWinning both the bid i.e. (W,W) = $30 + $2...

Q: Now you will compute some probabilities of events that are unions of intervals inside the sample spa...

A: The length of an interval can be calculated by subtracting both the points of the interval.The lengt...

Q: Evaluate the linear equation, y=4x−7, at the value x=2.   y= _____

A: Regression analysis:Regression analysis estimates the relationship among variables. That is, it esti...

Q: 1. Two businessmen agree to meet for lunch between 12 and 1. They are not surethey will be able to m...

A: Hi! You seem to have uploaded many questions at a time. So, only first three questions are being ans...

Q: 1. Given that yı = 3.2, y2 = 1.3, y3 = 4.1 is a random sample from yeu/o fr (y;0)= 604 y 20, calcula...

A: Given data

Q: a bag contains 6 red marbles , 5 yellow marbles and 7 green marbles , how many additional red marble...

A: Finding the number of additional red marbles added:Let x be the required number of additional red ma...

Q: following Normal distribution with u = 100 and standard deviation o = 15. What is the Probability th...

A: Given DataMean = 12Standard deviation = 3probability that X-value selected at randomly from this dis...

Q: Identify the type of hypothesis test below.H0:X≤16.9, Ha:X>16.9

A: Solution:From the given information, the null and alternative hypothesis are given below:Null hypoth...

Q: Find z such that 5.5% of the standard normal curve lies to the right of z. (Round your answer to two...

A: Instructions to obtain the z value.Step 1: In EXCEL, Select Add-Ins > MegaStat > Probability.S...

Q: M&M plain candies come in various colors. According to the M&M/Mars Department of Consumer A...

A: Given Data

Q: Use the following results from a test for marijuana​ use, which is provided by a certain drug testin...

A: From the given information, there are 20 false positive results among 141 subjects with positive tes...

Q: How do i find e(x), var(x) and e(x^3) using the moment generating function

A: Let us define the random variable X with moment generating function Mx(t).The moment generating func...

Q: Brandybuck Insurance Company (BIC) is deciding whether to insure the lives of those leading a quest ...

A: Given data

Q: has enough suits for the next 5 days, how many should the manager purchase? 3. Daily Newspapers A su...

A: From the given information,The required statistics can be calculated as;

Q: Convicted by mistake In criminal trials (e.g., murder, robbery, driving while impaired, etc.) in the...

A: Given DataProbability that defendant is convicted, given guilt is 0.95Probability that the defendant...

Q: Assume that the business makes a profit with probability 0.8 in the first year. For each year therea...

A: The provided information is:Consider p1 and p2 are the profits of the first year, thereafter year.An...

Q: Let P(E)=0.3, P(F/E)=0.4, P(F'/E')=0.1. Find a) P(F/E') b) P(E intersects F) c) P(F')  I couldnt fin...

A: Form the given information,

Q: According to a report, 9.5% of all full-time S.A. undergraduate students study abroad. Assume that 6...

A: According to the given information, since 9.5% students are full-time S.A. who studied abroad, so th...

Q: Thanks in advance!!!

A: Introduction:It is given that:P (Rain) = 0.30;P (No rain) = 0.70;P (Indoor-rock-climbing | Rain) = 0...

Q: Suppose we throw a fair six-sided die 4 times. If X counts the number of times the die rolled a 5 or...

A: It is given that die is rolled four times.When a six sided die is rolled, the probability of each ou...

Q: A research team conducted a study showing that approximately 10% of all businessmen who wear ties we...

A: (a)The probability that at least one tie is too tight is obtained below:Let X be the random variable...

Q: in the attached, I only need help with the last three parts. E, G, and H thanks

A: According to the provided data, the square footage is the explanatory variable and selling price is ...

Q: A man purchased a $25,000, 1-year term-life insurance policy for $350. Assuming that the probability...

A: Given:A man purchased a $25,000, 1-year term-life insurance policy for $350.The probability that he ...

Q: A fan of country music plans to make a custom CD with 12 of her 25 favorite songs. How many differen...

A: Given dataTotal songs N = 25 No of combinations for size 12 is given by

Q: Can someone help me with these questions? Attached you will find the questions

A: Given DataProbability that person is smoker = 0.20Probability that person is smoker and develop emph...

Q: a) 95% of the widgets lie between how many ounces? 3 -3.8 6- 2=YO setueen y0 7 da lie betneen b) Wha...

A: 2.a) From the given information, let us define the random variable X as the number of chocolate chip...

Q: I need step by step way explanation using the chart

A: The normal distribution:A continuous random variable X is said to follow normal distribution with me...

Q: A basketball player has a free throw percentage of 95%95%. What is the probability she misses at lea...

A: Binomial distribution:The binomial distribution gives the probability of number of successes out of ...

Q: Are customers more loyal in the East or in the West? The following table is based on information fro...

A: Note:Hi! Thank you for posting the question. Since your question has more than 3 parts, we have solv...

Q: What was the age distribution of nurses in Great Britain at the time of Florence Nightingale? Suppos...

A: The probability distribution for age midpoints as X and the percent of nurses is,

Q: Tony and Maria are two star-crossed lovers trying to get on a committee of 4 people. If there are 9 ...

A: As per the question There are total 9 persons and a committee of 4 people are selected. In this Exac...

Q: 2. Let X be a geometric random variable with parameter (the success probability) p. Let Ak be the ev...

A: It is provided that X be a geometric random variable with parameter (the success probability) p.Thus...

Q: Assume that when an adult is randomly​ selected, the probability that they do not require vision cor...

A: The probability that exactly 3 of them do not require a vision correction is obtained below:Here, do...

Q: A company is hiring a chef, a prep and a waiter. 5 equally qualified applicants applied. John is one...

A: (a)The probability that he will be the Chef is,

Q: A city council consists of eight Democrats and eight Republicans. If a committee of six people is​ s...

A: The probability of selecting two Democrats and four Republicans is,

Q: You have 3 quarters and 4 dimes in your pocket. You draw two out at random. What is the expected val...

A: From the given information, there are 3 quarters and 4 dimes. That is, total number of coins is 7 (=...

Q: 19. Airline Accidents Twenty-five percent of commercial airline accidents are caused by bad weather....

A: Hi, We are required to do only 1 question (upto 3 subparts) per session in case  multiple questions ...