I forgot the last digit of a 7-digittelephone number. If 1 randomly dial thefinal 3 digits after correctly dialing thefirst four, then what is the chance ofdialing the correct number?

We have given that the last digit of a 7-digit telephone number and the final 3 digits are randomly…

Answered: I forgot the last digit of a 7-digit…

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

Similar questions

You randomly choose 5 different songs in order from a playlist of 18 songs. What is the probability that the songs you choose will be in alphabetical order?
Of the first 5 vehicles in the teacher’s parking lot last Tuesday, 2 of them were minivans. Based on this information, if there are 120 vehicles in the parking lot, how many would you expect to be minivans?
A poker hand consists of 5 cards selected from a deck of 52 cards. How many poker hands consists of 3 queens and 2 kings?
You're taking a multiple choice exam. There are 10 questions, and for each question you select exactly one of 2 possible answers. If you choose random answers for each question, what is the probability that you will answer exactly 2 questions correctly?
we have a 70% chance of winning a game and play 80 times, how many games do we expect to win? Again, the game can only be won or lost; no ties. round answet to nearest integer.
Rose randomly surveyed 50 students and found that 15 had a part-time job. If there are 750 students in Rose's school, predict the total number of students with a part-time job
A student randomly guesses at 7 multiple choice questions. Each question has five possible answers. What is the probability that the student gets exactly 3 correct answers?
Math test has 6 multiple choice questions with four choices with one correct answer each. if you just randomly guess on each of the 6 questions, what is the probability that you get exactly 5 questions correct?
there are 624 scholars who attend Excel Middle School. (3)/(4)of the scholars ride the bus to school. Of the remaining scholars, (1)/(4) of them ride in cars, and the rest walk. How many scholars ride in cars? How many scholars walk?
A school newspaper reporter decides to randomly survey 17 students to see if they will attend Tet (Vietnamese New Year) festivities this year. Based on past years, she knows that 11% of students attend Tet festivities. We are interested in the number of students who will attend the festivities. How many of the 17 students do we expect to attend the festivities?
Suppose a box contains 3 red balls and 3 blue balls. You pick balls at random from the box, one at a time. When you pick a red ball, you keep it. When you pick a blue ball, you return it to the box. On average, how many times will you have to pick a ball from the box until you have picked out all three red balls?
Pablo randomly picks five marbles from a bag of eleven marbles (six red ones, three green ones, and two yellow ones). How many outcomes are there in the event that all of the marbles he picks are red?

SEE MORE QUESTIONS

Recommended textbooks for you

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

SEE MORE TEXTBOOKS

I forgot the last digit of a 7-digit telephone number. If 1 randomly dial the final 3 digits after correctly dialing the first four, then what is the chance of dialing the correct number?