The first three test scores of each of the four students are shown. Each student hopes to maintain an average of 85. Find the score needed by each student on the fourth test to have an average of 85, and explain why such average is not possible. a. Lisa: 78, 80, 100 b. Mary: 90, 92, 95 c. Lina: 79, 80, 81 d. Willie: 65, 80, 80

The first three test scores of each of the four students are shown. Each student hopes to maintain an average of 85. Find the score needed by each student on the fourth test to have an average of 85, and explain why such average is not possible. a. Lisa: 78, 80, 100 b. Mary: 90, 92, 95 c. Lina: 79, 80, 81 d. Willie: 65, 80, 80

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

A statistics professor kept attendance records and recorded the number of absent students per class. This data is displayed in the following histogram with the frequency of each number of absent students shown above the bars. How many total classes do these data represent?
Match these values of r with the accompanying scatterplots: - 0.996, - 1, 0.996, 0.742, and Click the icon to view the scatterplots. 0.404. Match the values of r to the scatterplots. Scatterplot 1, r = Scatterplot 2, r= Scatterplot 3, r = Scatterplot 4, r = Scatterplot 5, r =
Eric gave a large bowl of puppy chow to each of 80 puppies and recorded how many ounces of food they ate during a given time period. He kept track of each puppy's breed and the brand of chow they ate. The means for each condition are shown in the table. To answer the questions below, examine the means. Assume differences between means of at least 2 units are significant. Purina Blue Buffalo Border collie 5.35 2.15 Bulldog 3.15 7.70 A. From the data in the table, does it look like there is a significant main effect of the brand of food? а. yes b. no B. If you said there is an effect in the previous question, please describe it. C. From the data in the table, does it look like there is a significant main effect of puppy breed? а. yes b. no D. If you said there is an effect in the previous question, please describe it. E. From the data in the table, does it look like there is a significant interaction? a. yes b. no F. If you said there is an interaction in the previous question, please…
A company wants to study the effects a new drug has on alleviating pain. Some patients at doctor’s office are selected to be in the study. The patients will be randomly assigned to take the new drug or the old drug. They will be monitored to see when the pain goes away. How many treatments are there and what are they? A. Two and which Drug received B. One and which drug received C. Total number of Patients D. None.This is an obesevational study.
↑ A survey was conducted by a website on which online music channels subscribers use on a regular basis. The following information summarizes the answers. 11 listened to rap, heavy metal, and alternative rock. 18 listened to rap and heavy metal. 20 listened to heavy metal and alternative rock. 16 listened to rap and alternative rock. 25 listened to rap. 40 listened to heavy metal. 31 listened to alternative rock. 20 listened to none of these three channels. a. How many people were surveyed? b. How many people listened to either rap or alternative rock? c. How many listened to heavy metal only? a. How many people were surveyed?
The values listed below are waiting times (in minutes) of customers at two different banks. At BankA, customers enter a single waiting line that feeds three teller windows. At Bank B, customers may enter any one of three different lines that have formed at three teller windows. Answer the following questions. Bank A 6.5 6.6 6.7 6.8 7.1 7.2 7.6 7.8 7.8 7.8 Bank B 4.3 5.4 5.9 6.2 6.7 7.7 7.7 8.5 9.3 10.0 Click the icon to view the table of Chi-Square critical values. Construct a 99% confidence interval for the population standard deviation o at Bank A. min < OBank A min (Round to two decimal places as needed.) Construct a 99% confidence interval for the population standard deviation o at Bank B. min < OBank B
Match these values of r with the accompanying scatterplots: - 0.996, – 1, 0.996, 0.736, and 0.371. Click the icon to view the scatterplots. .... Match the values of r to the scatterplots. Scatterplot 1, r = Scatterplot 2, r= Scatterplot 3, r= Scatterplot 4, r = Scatterplot 5, r=
Dr. A. Ventura is interested in determining what kinds and how many pets people own in Bakersfield. He stands outside Petco and asks people what kind of pet they own. This is the result of his survey: dog=1; cat=2; bird=3; reptile=4; fish=5; other=6 1,1,2,2,2,1,1,3,2,3,1,1,1,2,2,4,4,2,2,1,1,1,5,4,3,4,1,1,1,2,2,6,1,1,2,2,1,2,1,2,6,3,4,5
The top 6 companies and the amount each spent on advertising in billions of dollars are as follows: Company At&T Advertising ($ billions) 3.5 Verizon Procter & Gamble L'Oreal Comcast Ford 2.4 4.1 2.1 3.7 2.7 Find the interquartile range for advertising (in $ billions). O a. 2.000 O b. None of the answers is correct OC. 1.475 Od. 1.825 O e. 1.350
If a coin is flipped 225 times and the number of Hs is 75. Compute the proportion of Hs. Round to three places.
Carl Catcher has a batting average of .370, meaning that he makes a hit 37% of the times he is up at bat. Pete Pitcher has a batting averager of only .110. Let x be the number of times Carol comes up to bat and let y be the number of times Pete comes to bat. a. If Carl bats 7 times and Pete bats 3 times, what should ther overall batting average be? b. If a total of 50 times at bat, how many times may Pete bat in order for their combined average to be as close as possible to .300? (define 3 variables, write system and solve)
Match these values of r with the accompanying scatterplots: - 0.994, 0.76, 0.994, - 0.374, and - 0.76. Click the icon to view the scatterplots. Match the values of r to the scatterplots. i Scatterplots Scatterplot 1, r= Scatterplot 2, r= Scatterplot 3, r = Scatterplot 1 Scatterplot 2 Scatterplot 3 Scatterplot 4, r= 8- 8- 8- Scatterplot 5, r = 6- 6- 6- > 4- 4- 4- 2- 2- 2- 0+ 0- 0- 0.2 0.4 0.6 0.8 1 0.2 0.4 0.6 0.8 1 0.2 0.4 0.6 0.8 1 Scatterplot 4 Scatterplot 5 8- 6- -2- -4– > 4- -6- 2- -8- 04 0.2 0.4 0.6 0.8 1 0.2 0.4 0.6 0.8 1 X of of of of of