The records of a fancy shoe store show that 60% of customers making a purchase pay by credit card. Suppose 10 customers purchased shoes from the store yesterday morning. i. What is the probability that at most three customers paid by credit card? A 0.055 B 0.012 С 0.988 D 0.945 ii. What is the expected number of purchases made by credit card? A 6 В 4 С 60 D 8

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.8: Probabilities Of Disjoint And Overlapping Events
Problem 2C
icon
Related questions
Question
The records of a fancy shoe store show that 60% of customers making a purchase pay by credit
card. Suppose 10 customers purchased shoes from the store yesterday morning.
i.
What is the probability that at most three customers paid by credit card?
A 0.055
B 0.012
C 0.988
D 0.945
ii.
What is the expected number of purchases made by credit card?
A 6
В 4
С 60
D 8
Transcribed Image Text:The records of a fancy shoe store show that 60% of customers making a purchase pay by credit card. Suppose 10 customers purchased shoes from the store yesterday morning. i. What is the probability that at most three customers paid by credit card? A 0.055 B 0.012 C 0.988 D 0.945 ii. What is the expected number of purchases made by credit card? A 6 В 4 С 60 D 8
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Recommended textbooks for you
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
College Algebra
College Algebra
Algebra
ISBN:
9781337282291
Author:
Ron Larson
Publisher:
Cengage Learning
College Algebra (MindTap Course List)
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning