100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
MATH221 Week 3 Homework Quiz| Questions & Answers (Complete Solutions 100% Correct) $11.49
Add to cart

Exam (elaborations)

MATH221 Week 3 Homework Quiz| Questions & Answers (Complete Solutions 100% Correct)

 0 purchase
  • Course
  • MATH221
  • Institution
  • MATH221

MATH221 Week 3 Homework Quiz| Questions & Answers (Complete Solutions 100% Correct)

Preview 2 out of 7  pages

  • January 10, 2025
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • MATH221
  • MATH221
avatar-seller
Examsplug
MATH221 Week 3 Homework Quiz| Questions &
Answers (Complete Solutions 100% Correct)

It is known that 13% of all golfers play on the weekends. We select 25 golfers and count
the number of golfers who play on weekends. For this binomial problem, which of the
following is true? - ✔✔The value of p is 0.13.


A survey found that 39% of all gamers play video games on their smartphones. Ten
frequent gamers are randomly selected. The random variable represents the number of
frequent games who play video games on their smartphones. What is the value of n? -
✔✔10


Forty-four percent of US adults have little confidence in their cars. You randomly select
twelve US adults. Find the probability that the number of US adults who have little
confidence in their cars is (1) exactly six and then find the probability that it is (2) more
than 7. - ✔✔(1) 0.207 (2) 0.099


Seven baseballs are randomly selected from the production line to see if their stitching
is straight. Over time, the company has found that 89.4% of all their baseballs have
straight stitching. If exactly five of the seven have straight stitching, should the company
stop the production line? - ✔✔No, the probability of exactly five have straight
stitching is not unusual


A supplier must create metal rods that are 2.1 inches width to fit into the next step of
production. Can a binomial experiment be used to determine the probability that the
rods are too wide, too narrow, or about right? - ✔✔No, as there are three possible
outcomes, rather than two possible outcomes


Consider the following table.

, Defects in batch - Probability
2 --- 0.21
3 --- 0.37
4 --- 0.22
5 --- 0.10
6 --- 0.07
7 --- 0.03

Find the standard deviation of this variable - ✔✔1.28


Eighty-two percent of employees make judgements about their co-workers based on
the cleanliness of their desk. You randomly select 7 employees and ask them if they
judge co-workers based on this criterion. The random variable is the number of
employees who judge their co-workers by cleanliness. Which outcomes of this binomial
distribution would be considered unusual? - ✔✔0, 1, 2, 3


The probability of a potential employee passing a drug test is 86%. If you selected 15
potential employees and gave them a drug test, how many would you expect to pass
the test? - ✔✔13 employees


Off the production line, there is a 3.7% chance that a candle is defective. If the company
selected 45 candles off the line, what is the standard deviation of the number of
defective candles in the group? - ✔✔1.27


Sixty-eight percent of US adults have little confidence in their cars. You randomly select
eleven US adults. Find the probability that the number of US adults who have little
confidence in their cars is (1) exactly eight and then find the probability that it is (2)
more than 6. - ✔✔(1) 0.247 (2) 0.744


Consider the following table.

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller Examsplug. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $11.49. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

69988 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 15 years now

Start selling
$11.49
  • (0)
Add to cart
Added