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xercise 1-19 Each individual in a group of n students is asked to pick an integer...
1.) Each individual in a group of n students is asked to pick an integer at...
1.) Each individual in a group of n students is asked to pick an integer at random between 1 and 10 (inclusive). a.) What is the smallest value of n that assures at least a 50% chance that at least two students select the same number? b.) What is the smallest value of n that assures at least a 75% chance? I got P = 1-(10/10)*(9/10)*....*(11-n)/10 but the answers I get don't match up to the answers from the book....
n=1 m=18 k=45 2. A group of students were interviewed and asked about the number of...
n=1
m=18 k=45
2. A group of students were interviewed and asked about the number of times in the previous week that they used their debit card. The results are summarized in the table below umber of times Number of students n. 2n (2n, 3n (3n, 4n] (4n, 5n 5n, 6n m+2 k +2 k -1 Approximate the mean, median and mode of the weekly number of debit card uses for the studied ANSWER: Mean Median Mode:
6. Two sections of a class contain 50 students each who just did a midterm exam....
6. Two sections of a class contain 50 students each who just did a midterm exam. In the first section 90% of the students passed the exam, in the second section only 70% of the students passed. Two friends randomly chose a sections at enrolment, but chose 1 the same one. Here we assume that we pick two students independently at random with replacement (so there is some chance that two students can end up being the same one). a....
3 points each nts. Pick two students randomly, 1. In a Math 2526 class, there are...
3 points each nts. Pick two students randomly, 1. In a Math 2526 class, there are 10 female and 15 male students. PICK the probability that both are male students is: - 0.55 a) 0.25, b) 0.35, c). 0:35, d). 0.45 2. In a Math 2526 class, there are 10 female and 15 male students. Among 10 got grade A. Among 15 male students, also 3 got grade A. le students. Among 10 female students, 3 Let A= 'pick one...
Select your answer. A random survey of 212 students asked each student to select the most...
Select your answer. A random survey of 212 students asked each student to select the most preferred form of recreational activity from five choices. Here are the results of the survey: Basketball (1) Softball (2) Swimming (3) Tennis (5) Jogging (4) 22 Male 31 16 19 23 Female 21 16 13 27 24 Is there a relationship between gender and preferred sport? The p-value is O below 0.01 between 0.05 and 0.10 O between 0.025 and 0.05 between 0.01 and...
For this In-Class Exercise, you are asked to build a MATLAB code that makes a few...
For this In-Class Exercise, you are asked to build a MATLAB code that makes a few assignment statements and a logical test with random numbers. To answer this ICE, you will need to upload a screenshot of your successful run showing ALL of the outputs. Remember to use good programing skills for the code. For your outputs: If your output for a step below is a single value, use a command similar to:fprintf(‘Question 5 answer: %4.3f \n,A) or fprintf(‘Question 5...
1. A group of students from two schools was asked how many hours of television they...
1. A group of students from two schools was asked how many hours of television they had watched last week. Here are their responses School A School B 8 7 1 12 20 10 6 3 7 7 6 7 4 4 8 8 13 17 17 9 Calculate the mode, median, and mean for each distribution. Why is only the mean different for the two samples? [Hint: Think about which measures of central tendency are most sensitive to outliers.]
Problem Description proving program correctness Consider the following program specification: Input: An integer n > 0...
Problem Description proving program correctness Consider the following program specification: Input: An integer n > 0 and an array A[0..(n - 1)] of n integers. Output: The smallest index s such that A[s] is the largest value in A[0..(n - 1)]. For example, if n = 9 and A = [ 4, 8, 1, 3, 8, 5, 4, 7, 2 ] (so A[0] = 4, A[1] = 8, etc.), then the program would return 1, since the largest value in...
when looking for a romantic partner. Two samples were collected: 30 adolescent males (age 13-15) and 30 male college students (age 19-32). Each subject was asked to identify the single most important...
when looking for a romantic partner. Two samples were collected: 30 adolescent males (age 13-15) and 30 male college students (age 19-32). Each subject was asked to identify the single most important factor determining whether he is likely to pursue a romantic relationship with a new female acquaintance. The number of men who chose each category are shown below. The 60 cases have been entered into a SPSS file called Ch17n21.sav. Run a Chi-square test for Independence using Analyze, Descriptive...
1. Each of 60 students was asked to draw a 20° angle without using a protractor. The size of each...
1. Each of 60 students was asked to draw a 20° angle without using a protractor. The size of each angle drawn was measured. The results are summarised in the box plot below 10 20 30 40 50 size of angle (a) Find the range for these data. (b) Find the interquartile range for these data. The students were then asked to draw a 70° angle. The results are summarised in the table below Angle, a, (degrees) Number of students...
n=1
m=18 k=45
2. A group of students were interviewed and asked about the number of times in the previous week that they used their debit card. The results are summarized in the table below umber of times Number of students n. 2n (2n, 3n (3n, 4n] (4n, 5n 5n, 6n m+2 k +2 k -1 Approximate the mean, median and mode of the weekly number of debit card uses for the studied ANSWER: Mean Median Mode:
3 points each nts. Pick two students randomly, 1. In a Math 2526 class, there are 10 female and 15 male students. PICK the probability that both are male students is: - 0.55 a) 0.25, b) 0.35, c). 0:35, d). 0.45 2. In a Math 2526 class, there are 10 female and 15 male students. Among 10 got grade A. Among 15 male students, also 3 got grade A. le students. Among 10 female students, 3 Let A= 'pick one...
Select your answer. A random survey of 212 students asked each student to select the most preferred form of recreational activity from five choices. Here are the results of the survey: Basketball (1) Softball (2) Swimming (3) Tennis (5) Jogging (4) 22 Male 31 16 19 23 Female 21 16 13 27 24 Is there a relationship between gender and preferred sport? The p-value is O below 0.01 between 0.05 and 0.10 O between 0.025 and 0.05 between 0.01 and...
when looking for a romantic partner. Two samples were collected: 30 adolescent males (age 13-15) and 30 male college students (age 19-32). Each subject was asked to identify the single most important factor determining whether he is likely to pursue a romantic relationship with a new female acquaintance. The number of men who chose each category are shown below. The 60 cases have been entered into a SPSS file called Ch17n21.sav. Run a Chi-square test for Independence using Analyze, Descriptive...
1. Each of 60 students was asked to draw a 20° angle without using a protractor. The size of each angle drawn was measured. The results are summarised in the box plot below 10 20 30 40 50 size of angle (a) Find the range for these data. (b) Find the interquartile range for these data. The students were then asked to draw a 70° angle. The results are summarised in the table below Angle, a, (degrees) Number of students...
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