Answered: Amy tosses a fair seven-sided die 2…

Amy tosses a fair seven-sided die 2 times. What is the probability she rolls at least 1 four? If necessary, round to 4 decimal places.

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...

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Question

Amy tosses a fair seven-sided die 2 times. What is the probability she rolls at
least 1 four?
If necessary, round to 4 decimal places.

Expert Solution

Step 1: Given information

$A m y space t o s s e s space a space f a i r space s e v e n space s i d e d space d i e space 2 space t i m e s. space P left parenthesis r o l l space a t space l e a s t space 1 space f o u r right parenthesis space equals space ? space$

$P left parenthesis E v e n t right parenthesis space equals space fraction numerator N u m b e r space o f space f a v o r a b l e space o u t c o m e s over denominator T o t a l space o u t c o m e s end fraction$

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