Learning Materials
Features
Discover
Chapter 5: Q 94. (page 331)
Late flights An airline reports that 85% of its flights arrive on time. To find the probability that its next four flights into LaGuardia Airport all arrive on time, can
we multiply (0.85)(0.85)(0.85)(0.85)? Why or why not?
No.
Over 30 million students worldwide already upgrade their learning with 91影视!
All the tools & learning materials you need for study success - in one app.
Get started for free
Get rich Refer to Exercise 63.
(a) Find P(鈥渁 good chance鈥� | female).
(b) Find P(鈥渁 good chance鈥�).
(c) Use your answers to (a) and (b) to determine whether the events 鈥渁 good chance鈥� and 鈥渇emale鈥� are
independent. Explain your reasoning.
Construct a tree diagram to represent this situation.
Languages in Canada Canada has two official languages, English and French. Choose a Canadian at random and ask, 鈥淲hat is your mother tongue?鈥�
Here is the distribution of responses, combining many separate languages from the broad Asia/Pacific region:Language: English French Asian/Pacific Other Probability: ?
(a) What probability should replace 鈥�?鈥� in the distribution? Why?
(b) What is the probability that a Canadian鈥檚 mother tongue is not English?
(c) What is the probability that a Canadian鈥檚 mother tongue is a language other than English or French?
Scrabble In the game of Scrabble, each player begins by drawing 7 tiles from a bag containing 100 files. There are 42 vowels, 56 consonants, and 2 blank tiles in the bag. Chait chooses her 7 tiles and is surprised to discover that all of them are vowels. We can use a simulation to see if this result is likely to happen
by chance.
(a) State the question of interest using the language of probability.
(b) How would you use random digits to imitate one repetition of the process? What variable would you measure?
(c) Use the line of random digits below to perform one repetition. Copy these digits onto your paper. Mark directly on or above them to show how you
determined the outcomes of the change process. 00694 05977 19664 65441 20903 62371 22725 53340
(d) In 1000 repetitions of the simulation, there were 2 times when all 7 tiles were vowels. What conclusion would you draw?
Keep on tossing The figure below shows the results of two different sets of coin tosses. Explain what this graph says about chance behavior in the short run and the long run.
What do you think about this solution?
We value your feedback to improve our textbook solutions.
Explanations 
Textbooks 
Flashcards 
91影视 AI 
Notes 
Study Plans 
Study Sets 
Find a degree 
Magazine