Question

John runs a computer software store. Yesterday he counted 130 people who walked by the store,...

John runs a computer software store. Yesterday he counted 130 people who walked by the store, 67 of whom came into the store. Of the 67, only 22 bought something in the store.

(a) Estimate the probability that a person who walks by the store will enter the store. (Round your answer to two decimal places.)

(b) Estimate the probability that a person who walks into the store will buy something. (Round your answer to two decimal places.)

(c) Estimate the probability that a person who walks by the store will come in and buy something. (Round your answer to two decimal places.)

(d) Estimate the probability that a person who comes into the store will buy nothing. (Round your answer to two decimal places.)

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
John runs a computer software store. Yesterday he counted 135 people who walked by the store,...
John runs a computer software store. Yesterday he counted 135 people who walked by the store, 64 of whom came into the store. Of the 64, only 25 bought something in the store. (Round your answers to two decimal places.) (a) Estimate the probability that a person who walks by the store will enter the store. (b) Estimate the probability that a person who walks into the store will buy something. (c) Estimate the probability that a person who walks...
John runs a computer software store. Yesterday he counted 125 people who walked by the store,...
John runs a computer software store. Yesterday he counted 125 people who walked by the store, 58 of whom came into the store. Of the 58, only 21 bought something in the store. (Round your answers to two decimal places.) (a) Estimate the probability that a person who walks by the store will enter the store. (b) Estimate the probability that a person who walks into the store will buy something. (c) Estimate the probability that a person who walks...
John runs a computer software store. Yesterday he counted 133 people who walked by the store,...
John runs a computer software store. Yesterday he counted 133 people who walked by the store, 66 of whom came into the store. Of the 66, only 25 bought something in the store. (Rounding your answers to two decimal places.) a.) Estimate the probability that a person who walks by the store will enter the store. b.) Estimate the probability that a person who walks into the store will buy something. c.) Estimate the probability that a person who walks...
ohn runs a computer software store. Yesterday he counted 133 people who walked by the store,...
ohn runs a computer software store. Yesterday he counted 133 people who walked by the store, 50 of whom came into the store. Of the 50, only 27 bought something in the store. (a) Estimate the probability that a person who walks by the store will enter the store. (Round your answer to two decimal places.) (b) Estimate the probability that a person who walks into the store will buy something. (Round your answer to two decimal places.) (c) Estimate...
When do creative people get their best ideas? USA Today did a survey of 966 inventors...
When do creative people get their best ideas? USA Today did a survey of 966 inventors (who hold U.S. patents) and obtained the following information. Time of Day When Best Ideas Occur Time Number of Inventors 6 A.M.-12 noon 12 noon-6 P.M. 6 P.M.-12 midnight 12 midnight-6 A.M. 298 142 315 211 (a) Assuming that the time interval includes the left limit and all the times up to but not including the right limit, estimate the probability that an inventor...
Sixty percent of the customers who go to Sears Auto Center for tires buy four tires...
Sixty percent of the customers who go to Sears Auto Center for tires buy four tires and 22% buy two tires. Moreover, 14% buy fewer than two tires, with 4% buying none. a. What is the probability that a customer buys three tires? (Round your answer to 2 decimal places.) b. Construct a cumulative probability distribution for the number of tires bought. (Round your answer to 2 decimal places.)
A study compared people who followed the American Heart Association (AHA) diet to people who followed...
A study compared people who followed the American Heart Association (AHA) diet to people who followed the Mediterranean (Med) diet, with the following results. Disease No Disease Total AHA 70 249 319 Med 27 266 293 Total 97 515 612 Suppose that a study participant is chosen at random. Answer the following questions. What is the probability that the participant was diseased if he or she followed the AHA diet? Round your answer to two decimal places. Given that the...
1) People end up tossing 12% of what they buy at the grocery store. Assume this...
1) People end up tossing 12% of what they buy at the grocery store. Assume this is the true population proportion and that you plan to take a sample survey of 540 grocery shoppers to further investigate their behavior. Show the sampling distribution of p, the proportion of groceries thrown out by your sample respondents. If required, round your answer to four decimal places. 2) eBook Twenty-two percent of primary care doctors think their patients receive unnecessary medical care. If...
#46 In a survey of 2000 adults 50 years and older of whom 20% were retired...
#46 In a survey of 2000 adults 50 years and older of whom 20% were retired and 80% were pre-retired, the following question was asked: Do you expect your income needs to vary from year to year in retirement? Of those who were retired, 23% answered no, and 77% answered yes. Of those who were pre-retired, 28% answered no, and 72% answered yes. If a respondent in the survey was selected at random and had answered yes to the question,...
1) At a lumber company, shelves are sold inȱȱ5 types of wood, 4 different widths and...
1) At a lumber company, shelves are sold inȱȱ5 types of wood, 4 different widths and 3 different lengths. How many different types of shelves could be ordered? 2) A shirt company has 5 designs each of which can be made with short or long sleeves. There are 4 different colors available. How many differentȱȱshirts are available from this company? Find the indicated probability. Round your answer to 2 decimal places when necessary. 3) A bag contains 6 red marbles,...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT