The grade distribution for scores on a final exam is shown in the stem-and-leaf plot.(a) What is the shape of the grade distribution?(b) How many students earned 85% or better?(c) How many students earned less than 45%?StemLeaves6802244StemLeaves23763355918113Units: 9|9 = 99%8.0112856890001111456796(a) Choose the correct answer below.Right skewedUniformLeft skewedNormal(b) There is(are) student(s) that earned 85% or better.(Type a whole number.)(c) There is(are) student(s) that earned less than 45%.(Type a whole number.)

Graphs are easy representation of the data set. It is also used to visualize the whole data set.…

Answered: The grade distribution for scores on a…

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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The weights (to the nearest five pounds) of 30 randomly selected male college students are organized in the histogram. Use the graph to find the median weight. The median weight is pounds. (Type an integer or a decimal.) C Students (frequency) Number 10- 8+ 6- 4- Weight of 30 Male College Students 110 115 120 125 130 135 140 145 150 155 160 165 Weight (pounds) ON
Derby collects samples of insects in the forest and in a marsh to count the number of insects in each sample and then releases the insects. The number of insects in each sample from the two locations is provided below. Forest 1515 1313 1414 99 1616 1111 1515 1414 1515 1414 Marsh 1717 1414 1515 1717 1616 1818 1717 1919 1313 1616 What is the median and the interquartile range for each of the two locations? Round to one decimal place. The median number of insects in the forest samples is , and the interquartile range is . The median number of insects in the marsh samples is , and the interquartile range is .
H.W(3) For the data below: 6.3, 7.0, 7.5, 9.0, 7.7, 7.8, 7.1, 8.1 6.6, 7.2, 8.3, 8.5, 6.9, 7.7, 8.0, 7.3 8.6, 7.1, 8.7, 6.4, 7.7, 7.4, 8.0, 7.6 7.5, 7.2, 7.5, 8.8, 7.8, 7.9, 7.3, 7.0 6.8, 8.1, 8.4, 6.7, 7.1, 8.2, 8.1, 7.7 1. Create a frequency table. 2. Plot histogram and polygon 3. Plot Ascending and descending cumulative frequency.
A pediatrician wants to determine the relation that may exist between a child's height and head circumference. She randomly selects 8 children from her practice, measures their height and head circumference and obtains the data shown below. Height Head Circumference 27 17.5 25 17 26.5 17.2 25.5 17 27.75 17.4 26.25 17.4 26 17.1 27.25 17.4 data table n 3 0.997 4 0.950 5 0.878 6 0.811 7 0.754 8 0.707 9 0.666 10 0.632 11 0.602 12 0.576 13 0.553 14 0.532 15 0.514 16 0.497 17 0.482 18 0.468 19 0.456 20 0.444 21 0.433 22 0.423 23 0.413 24 0.404 25 0.396 26 0.388 27 0.381 28 0.374 29 0.367 30 0.361 compute the linear correlation coefficient between the height and head circumference of a child. r = ____ (round to three decimal places as…
The most important aspects of variable distribution are: a. Histogram, bar diagram, pie chart, leaf and stem b. Form, center and extension c. It’s cases and categories d. Form and type of variable
7. Describe the shape of your data set by looking at the histogram. In your histogram how many classes are there? What is the class width?
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