Mary is shopping for houses in the neighborhood.  20 of the houses are between $60,000-$70,000; 30 of them are $80,000-$90,000; 20 of the houses are between $91,000-$110,000; and 30 of the houses are above $120,000.  If Mary is debating between two houses, one that is $80,000-$90,000 and another that is $91,000-$110,000, what are the number of ways that Mary can select houses?

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...
icon
Related questions
Topic Video
Question

Mary is shopping for houses in the neighborhood.  20 of the houses are between $60,000-$70,000; 30 of them are $80,000-$90,000; 20 of the houses are between $91,000-$110,000; and 30 of the houses are above $120,000.  If Mary is debating between two houses, one that is $80,000-$90,000 and another that is $91,000-$110,000, what are the number of ways that Mary can select houses?

Expert Solution
Step 1

Given data

Price Range

No of Houses

$60,000 -$70,000

20

$80,000 -$90,000

30

$91,000 -$110,000

20

Above $120000

30

 

No of houses Mary can select in the range of $80,000 -$90,000 = 30

No of houses Mary can select in the range of $90,000 -$110,000 = 20

Total no of ways Mary can select the Houses = 30 x 20 = 600

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Optimization
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, probability and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability
A First Course in Probability
Probability
ISBN:
9780321794772
Author:
Sheldon Ross
Publisher:
PEARSON