Every year, the students at a school are given a musical aptitude test that rates them from 0 (no musicalaptitude) to 5 (high musical aptitude). This year's results were:Aptitude ScoreFrequency123413 2The average (mean) aptitude score:The median aptitude score:57

Calculate Mean, Median from the following grouped data X Frequency 0 1 1 3 2 2 3 4 4 3…

Answered: Every year, the students at a school…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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In California, they need more rain to sustain the health of the natural environment, state argriculture, and state economy. A group of statistics students in Oxnard College recorded the amount of rain during 2016-2017 school year, measuring the intensity by the inches of rain, and the results were: Daily Rain Amounts Inches of Rain 1 2 3 4 5 6 Frequency 7 6 6 3 2 1 The mean rain intensity: ________inches (Please show your answer to 1 decimal place.) The median rain intensity: _______inches The mode rain intensity: _______inches Please separate your answers by a comma if there is more than one mode.
The NAEP music assessment scores for eighth grade students are approximately N (150, 35). Find the z-scores by standardizing the following scores: 150, 140, 100, 180, and 230. The percentile score is the proportion of students who would score LESS THAN OR EQUAL TO the score for the individual student. Compute the percentile scores for the five scores.
which day did the students awnser the mean number of problems for the week?
find the mean, median, and range of the set of numbers. Then, use Excel to create a frequency table and a histogram of the test scores. Make sure to label your tables and graphs appropriately A researcher is studying reaction times in mice. The reaction times in milliseconds (ms) for thirty mice are shown below. 66 384 539 578 166 741 874 384 221 178 176 675 275 15 845 397 271 655 681 702 63 823 364 194 755 744 557 776 69 857
A class of students took a test. The instructor said that the 75th percentile score was 90 out of 100. What does this mean? A. 90% of the students scored 75 or more on the test. B. 75% of the students scored 90 or more on the test. C. 25% of the students scored 90 or more on the test. D. The high score in the class was (.75)(90).
The cost of you electricity bill for the last five months are as follows: $54, $36, $80, $65, and $44 a) What is the median cost of electricity b) Find the mean cost of electricity
Twenty-five randomly selected students were asked the number of movies they watched the previous week. The results are as follows. # of movies Frequency Relative Frequency Cumulative Relative Frequency 0 5 1 9 2 6 3 4 4 1 Table 2.67 Construct a histogram of the data. Complete the columns of the chart.
A student earned grades of 74, 75, 79, and 91 on her four regular tests. She earned a grade of 75 on the final exam and 84 on her class projects. Her combined homework grade was 86. The four regular tests count for 40% of the final grade, the final exam counts for 30%, the project counts for 10%, and homework counts for 20%. What is her weighted mean grade? 80.0 80.6 80.5 81.1
A: 0, 5, 2, 3, 0, 6, 0, 10, 3, 0 a. Use each sample to make an estimate for the median number of nights students in your school plan to camp next summer.
The number of hours per week that the television is turned on is determined for each family in a sample. The mean of the data is 30 hours and the median is 26.2 hours. Twenty-four of the families in the sample turned on the television for 15 hours or less for the week. The 11th percentile of the data is 15 hours. Step 4 of 5 : What is the value of the 50th percentile?
A group of students were surveyed about the number of siblings they have. Their responses are summarized in the frequency table below. How many students responded to the survey? Number of Siblings Frequency 0 6 1 8 2 5 3 3 4 1 5 or more 3
Kara has five exam scores of 6363, 5959, 6767, 7575, and 7373 in her biology class. What score does she need on the final exam to have a mean grade of 7070?

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Every year, the students at a school are given a musical aptitude test that rates them from 0 (no mus aptitude) to 5 (high musical aptitude). This year's results were: Aptitude Score Frequency 1 2 3 4 1 3 2 4 3 7 The average (mean) aptitude score: The median aptitude score: