/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q. 15 聽An integral part of doing busi... [FREE SOLUTION] | 91影视

91影视

An integral part of doing business in the dot-com culture of the late 1990swas frequenting the party circuit centered in San Francisco. Here high-tech companies threw as many as five parties a night to recruit or retain talented workers in a highly competitive job market. With as many as700guests at a single party. the food and booze flowed, with an average alcohol cost per guest of dollarrole="math" localid="1651238902534" 15to18 and an average food bill of dollar 75to150. A sample of guests at a dot-com party yielded the following data on number of alcoholic drinks consumed per person.


a. Find the mean, median, and mode of these data.
b. Which measure of center do you think is best here? Explain your answer.

Short Answer

Expert verified

a. The mean, median, and mode of these data is2.35,2,1and2respectively.

b. The measure of center do you think is best here is median.

Step by step solution

01

Part (a) Step1: Given information

We need to find that mean , median,mode of data.

02

Part (a) Step2: Explanation

To find mean , we will get,=xiN=4720=2.35here is mean.

To find median, we will arrange data in ascending order,0,0,1,1,1,1,1,2,2,2,2,2,3,3,4,4,4,4,5,5

Here the middle value is 2which is median.

To calculate mode, here the number that occur the most are 1and 2. so mode is1and2.

03

Part (b) Step1: Given information

We need to find that which measure of center is best here .

04

Part (b) Step2: Explanation

The measure of center which is best here is median because when there are extreme values or outliers because it is not affected by the precise numerical values of the outliers which will not be in mean.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Early-Onset Dementia. Dementia is the loss of intellectual and social abilities severe enough to interfere with judgment, behavior, and daily functioning. Alzheimer's disease is the most common type of dementia. In the article "Living with Early Onset Dementia: Exploring the Experience and Developing Evidence-Based Guidelines for Practice" (Alsheimer's Care Quarterly), P. Harris and J. Keady explored the experience and struggles of people diagnosed with dementia and their families. The ages of a simple random sample of 21people with early-onset dementia have a mean of 52.5years and a standard deviation of 6.5years.

a. construct a graph
b. Apply Chebyshev's rule with k=2 to make pertinent statements about the observations in the sample.
c. repeat part (b) with k=3

Copperhead and Tiger Snakes. S. Fearn et al. compare two types of snakes in the article 鈥淏ody Size and Trophic Divergence of Two Large Sympatric Elapic Snakes in Tasmania鈥 (Australian Journal of Zoology, Vol. 60, No. 3, pp. 159-165). Tiger snakes and lowland copperheads are both large snakes confined to the cooler parts of Tasmania. The weights of the male lowland copperhead in Tasmania have a mean of 812.07 g and a standard deviation of 330.24 g; the weights of the male tiger snake in Tasmania have a mean of 743.65 g and a standard deviation of 336.36 g.
a. Determine the z-scores for both a male lowland copperhead snake and a male tiger snake whose weights are 850 g.
b. Under what conditions would it be reasonable to use z-scores to compare the relative standings of the weights of the two snakes?
c. Assuming that a comparison using z-scores is legitimate, relative to the other snakes of its type, which snake is heavier?

If the condition for using the empirical rule is met,why should that rule be used insted of Chebyshev's rule.

A quantitative data set has mean 30and standard deviation 4. At least what percentage of the observations lie between 10and50?

Identify a use of lower and upper limits.

See all solutions

Recommended explanations on Math Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.