Homework 6

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Provide an appropriate response.
1) A test consists of 10 true/false questions. To pass the test a student must answer at least 7 questions
correctly. If a student guesses on each question, what is the probability that the student will pass
the test?
1)
A) 0.945 B) 0.117 C) 0.055 D) 0.172
2) If an investor purchased 50 shares of Pearson Education stock at $85 per share, 90 shares at $105 per
share, 120 shares at $110 per share and another 75 shares at $130 per share. What is the mean cost
per share?
2)
A) $109.40 B) $130.50 C) $110.25 D) $105.50
3) The register of a college recorded the amount of time each student spent waiting in line during
peak registration hours one Monday. The frequency table below summarizes the results. Find the
standard deviation. Round your answer to one decimal place.
Waiting time
(minutes)
Number of
students
0 – 3 15
4 – 7 15
8 – 11 8
12 – 15 9
16 – 19 0
20 – 23 3
3)
A) 5.4 B) 5.8 C) 5.6 D) 5.3 E) 5.9
4) The frequency distribution below gives the weight in grams of 100 laboratory mice. What is the
probability that the weight of a healthy mouse selected randomly from the sample will be more
than 52 grams?
Weight in grams of Laboratory Mice
Class Interval Frequency
43.5-46.5 16
46.5-49.5 24
49.5-52.5 27
52.5-55.5 24
55.5-58.5 9
4)
A) 0.33 B) 0.23 C) 0.67 D) 0.50
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
A fair coin is tossed fourteen times. What is the probability of obtaining the following? Express the answer both in terms
of Cn, k and as a fourplace decimal.
5) Exactly 12 heads? 5)
2
Construct a frequency polygon.
6)
Weight of bag
of chips (in ounces)
Number of
bags
15.6-15.7 6
15.8-15.9 22
16.0-16.1 35
16.2-16.3 27
16.4-16.5 10
6)
Construct a pie graph, with sectors given in percent, to represent the data in the given table.
7)
Favorite Beverage Number of responses
Cola 306
Juice 189
Milk 207
Tea 279
Water 135
7)
Construct the specified histogram.
8) Construct a histogram for the following set of data on oil rig utilization by type.
Oil Rig Type Percentage of Rigs Currently Utilized (Feb. 2004)
Jackup 86%
Semisub 74%
Drill Ship 82%
Submersible 86%
8)
3
Provide an appropriate response.
9) A botanist wants to grow a rare plant in his greenhouse. The probability that a given bulb
will mature is 0.42. Suppose 6 bulbs are planted.
(A) Write the probability function defining this distribution.
(B) What is the probability that 3 or more bulbs will mature?
(Round your answer to three decimal places.)
9)
Which single measure of central tendency mean, median, or mode would you say best describes the given set of
measurements? Explain why.
10) 36 41 72 81 64
52 83 78 71 40
10

Don't use plagiarized sources. Get Your Custom Essay on
Homework 6
Get a PLAGIARISM-FREE custom essay written for you!
Order Essay

Homework Paper
Order NOW For A 10% Discount!
Pages (550 words)
Approximate price: -

Our Advantages

Plagiarism Free Papers

All our papers are original and written from scratch. We will email you a plagiarism report alongside your completed paper once done.

Free Revisions

All papers are submitted ahead of time. We do this to allow you time to point out any area you would need revision on, and help you for free.

Free Title-page

A title page preceeds all your paper content. Here, you put all your personal information and this we give out for free.

Free Bibliography

Without a reference/bibliography page, any academic paper is incomplete and doesnt qualify for grading. We also offer this for free.

Originality & Security

At Homework Sharks, we take confidentiality seriously and all your personal information is stored safely and do not share it with third parties for any reasons whatsoever. Our work is original and we send plagiarism reports alongside every paper.

24/7 Customer Support

Our agents are online 24/7. Feel free to contact us through email or talk to our live agents.

Try it now!

Calculate the price of your order

We'll send you the first draft for approval by at
Total price:
$0.00

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

Our Services

We work around the clock to see best customer experience.

Pricing

Flexible Pricing

Our prces are pocket friendly and you can do partial payments. When that is not enough, we have a free enquiry service.

Communication

Admission help & Client-Writer Contact

When you need to elaborate something further to your writer, we provide that button.

Deadlines

Paper Submission

We take deadlines seriously and our papers are submitted ahead of time. We are happy to assist you in case of any adjustments needed.

Reviews

Customer Feedback

Your feedback, good or bad is of great concern to us and we take it very seriously. We are, therefore, constantly adjusting our policies to ensure best customer/writer experience.