The frequency distribution in the following table lists the results of a quiz given in Professor Gilbert's statistics class. Find the mean, median, and mode of the scores. (Round answer for mean to one decimal place. Enter solutions for mode from smallest to largest. If there are any unused answer boxes, enter NONE in the last boxes.)
Score | Number of Students |
10 | 5 |
9 | 12 |
8 | 11 |
7 | 10 |
6 | 12 |
5 | 4 |
Mean | |
Median | |
Mode | |
Mode |
The statistical software output for this problem is:
From above output:
Mean = 7.6
Median = 8
Mode = 6
Mode = 9
The frequency distribution in the following table lists the results of a quiz given in Professor...
The frequency table below shows the scores of a group of students on a 10-point quiz. The frequency is the number of students who got that score. Test Score Frequency 3 1 4 1 5 2 6 2 7 3 8 3 9 3 10 2 The mean score on this test is: The median score on this test is:
4. The following frequency table shows the test score distribution for a random sample of 25 students taking an introductory statistics class at a certain college. a. Find the missing relative frequency b. How many students in the sample RelativeF 0.08 0.04 Score 30-40 41-51 52-62 63-73 74 -84 85-95 had a score of at least 63? Total number of students taking an introductory statistics class at this college is 800. Based on the sample data above, estimate the total...
The table below shows the scores of a group of students on a 10-point quiz. Test Score 3 Frequency 3 0 4 4 5 6. 1 1 7 8. 5 9 3 10 4 The mean score on this test is: The median score on this test is:
The table below shows the scores of a group of students on a 10-point quiz. Test Score Frequency 3 3 4 5 5 3 6 4 7 4 8 3 9 1 10 1 The mean score on this test is: The median score on this test is:
4. 1/3 points | Previous AnswersPriviteraStats2 3.E.011. The following frequency distribution table lists the time (in minutes) that participants were late for an experimental session. Compute the sample mean, median, and mode for these data. mean median mode min mín x min Time (min) Frequency Refer to steps for computing the mean, median, and mode (Section 3.2). Additional Materials . Section 3.1 5, 1/1 points ! PreviousAnswersPriviteraStats2 3.Е.013.
8) The following numbers represent quiz scores for 15 students. What is the mean score? (Enter your answer rounded to the tenths place, e.g. enter 8.3 instead of 8. Do not include units.) 4,5,5,6,7,7,7,8,8,8,9,9,9,9,10 Answer: For the distribution of quiz scores above, what is the median quiz score? Answer: 9) 10) Which of the following statements is always true? a). Half of the data is above the mean and half of the data is below the mean b). There are...
7) A retired statistics professor has recorded final exam results for decades. The mean final exam score for the population of her students is 82.4 with a standard deviation of 6.5 . In the last year, her standard deviation seems to have changed. She bases this on a random sample of 25 students whose final exam scores had a mean of 80 with a standard deviation of 4.2 . Test the professor's claim that the current standard deviation is different...
A true-false quiz with 10 questions was given to a statistics class. Following is the probability distribution for the score of a randomly chosen student. Find the mean score and interpret the result. Round the answers to two decimal places as needed. 5 6 7 9 10 P(x) 0.08 0.18 0.35 0.22 0.11 0.06 8 to Excel х The mean is If we were to give this quiz to more and more students, the mean score for these students would...
Calculate the sample standard deviation and sample variance for the following frequency distribution of final exam scores in a statistics class. If necessary, round to one more decimal place than the largest number of decimal places given In the data Final Exam Scores Class Frequency 51 60 6170 71-80 5 81-90 91 100 5 10
ine students in Mr. Ruiz's class all took a spelling test. Raw scores can range between 0 (0%) and 10 (100%). Their scores are listed below. Student Raw Score A 4 B 5 C *5* D 6 E 6 F 6 G 7 H 7 I 8 The class mean is 6, median is 6 , mode is 6 , range is 4 , and standard deviation is 1.1(round to one decimal place). Look at Student C's score. The score...