QUESTION 13(Refer to the example of "Silk Scarf" in thelecture slides)The last year's data show that everyday XYZ Store sold 14 to 20 pieces of silkscarves. The summary of daily sales of thatscarf is given in the table below.probabilitiesof daily salespieces ofnumberscarvesof dayssold aday3714681558168217491841193020 681558168217491841193020Which column in the above table is the"possible value column"? (For the meaning of"possible value column", refer to the classslides and class lecture.)Column “number of days".Column “pieces of scarves sold a day".

Frequency table or frequency distribution which list all the possible variables in a given interval.…

Answered: (Refer to the example of "Silk Scarf"…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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The distribution of the number of cars sold per month over the past year is displayed below for two different salesmen that work at the same car dealership. Salesman A 5 6 7 8 - co • 9 10 11 12 13 14 15 . 6 7 8 9 10 11 12 13 14 15 Number of Cars Sold 5 + Salesman B - Which of the following statements is true? (A) The median number of cars sold for salesman A is more than the median number of cars sold for salesman B. (B) The range in number of cars sold for salesman A is less than the range in number of cars sold for salesman B. (C) The mean number of cars sold for salesman A is less than the mean number of cars sold for salesman B. (D) The interquartile range in number of cars sold for salesman A is twice the interquartile range in number of cars sold for salesman B. (E) For both salesmen, the distribution of number of cars sold is approximately symmetric.
which is the correct answer?
Researchers studying pleasant touch sensations measured the firing frequency (impulses per second) of nerves that were stimulated by a light brushing stroke on the forearm and also recorded the subject's numerical rating of how pleasant the sensation was. The accompanying data was read from a graph in a paper. Firing Frequency Pleasantness Rating 23 24 22 25 26 29 34 34 35 34 0.3 1.0 1.2 1.2 1.0 2.0 2.3 2.2 2.3 2.7 (a) Estimate the mean change in pleasantness rating associated with an increase of 1 impulse per second in firing frequency using a 95% confidence interval. (Use technology or the Distribution Calculators page in SALT to find the critical value. Round your answers to three decimal places.) x Jx ) Interpret the resulting interval. We are 95% confident that the mean change in firing frequency associated with an increase of 1 in pleasantness rating is in this interval. O We are 95% confident that the mean change in firing frequency associated with an increase of 1 in…
Construct the cumulative frequency distribution for the given data. Age (years) of Best Actress when award was won 20-29 30-39 40-49 50-59 60-69 70-79 80-89 Frequency 25 34 11 3 7 2 2 Age (years) of Best Actress when award was won Cumulative Frequency Less than 30 Less than 40 Less than 50 Less than 60 Less than 70 Less than 80 Less than 90
EXAMPLE 4.9 Students who seek therapy at university counseling centers often do not attend many sessions. For example, in one study, the median number of therapy sessions was 3 and the mean was 4.6 (Hatchett, 2003). Let’s examine the spread of fictional scores for a sample of five students: 1, 2, 4, 4, and 10 therapy sessions, with a mean of 4.2. We find out how far each score deviates from the mean by subtracting the mean from every score. First, we label with an X the column that lists the scores. Here, the second column includes the results we get when we subtract the mean from each score, or X − M. We call each of these a deviation from the mean (or just a deviation)—the amount that a score in a sample differs from the mean of the sample. X X − M 1 − 3.2 2 − 2.2 4 − 0.2 4 − 0.2 10 5.8 But we can’t just take the mean of the deviations. If we do (and if you try this, don’t forget the signs—negative and positive), we get 0—every time. Are you surprised?…
9 The table below shows the weights of 8 different bears at a zoo. Type of Bear Asiatic Black Bear Black Bear Brown Bear Panda Bear Polar Bear Sloth Bear Spectacled Bear Sun Bear Weight (pounds) 225 300 550 200 1,000 300 280 100 If the weight of the polar bear is removed, which statement is true? A The mean decreases more than the median because the polar bear is a high outlier. The mean decreases less than the median because the polar bear is a high outlier.

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