The table below shows the daily frequency of female customers at a particular ice cream shop during discount sale periods. The data is collected for 5 days. Calculate the mean for the data. \[\begin{array} { | l | l | } \hline \text { Female } & \\ \text { Customer } & \\ \text { Frequency } & \\ \hline \text { Days (x) } & \text { Frequency (f) } \\ \hline 1 & 0 \\ \hline 2 & 5 \\ \hline 3 & 8 \\ \hline 4 & 11 \\ \hline 5 & 18 \\ \hline \end{array}\]

For grouped data, mean, = @#IMG-DLM& @#IMG-DLM& , where n is

The following table lists the amounts paid in mortgages as a percentage of the household income in the town Aponia. Calculate the variance and standard deviation of the data, if mean is given as 22.4%. The percentage (x) values are estimated as midpoints of each percentage range. \[\begin{array} { | l | l | l | } \hline \begin{array} { l } \text { Mortgage as a } \\ \text { percentage of } \\ \text { household income in } \\ \text { Aponia } \end{array} & & \\ \hline \text { Group in \% } & \begin{array} { l } \text { Percentage } \\ \text { (x) } \end{array} & \begin{array} { l } \text { Number of } \\ \text { households (f) } \end{array} \\ \hline 0 - 10 & 5 & 4567 \\ \hline 10 - 20 & 15 & 6562 \\ \hline 20 - 30 & 25 & 3356 \\ \hline 30 - 40 & 35 & 2975 \\ \hline 40 - 50 & 45 & 1644 \\ \hline 50 - 60 & 55 & 1376 \\ \hline \end{array}\]

For grouped data such as this, variance,

Compare and contrast methods of summarizing and describing data Use the table below to answer the following question(s). Below is a table showing the costs per order of items bought by a computer hardware store. \[\begin{array} { | l | l | l | } \hline \text { Supplier } & \text { Item Description } & \text { Cost per Order } \\ \hline \text { Aloham Technologies } & \text { Monitors } & \$ 250 \\ \hline \text { Aloham Technologies } & \text { Hard Disks } & \$ 220 \\ \hline \text { Aloham Technologies } & \text { Power Supply } & \$ 88 \\ \hline \text { Aloham Technologies } & \text { Graphics Card } & \$ 300 \\ \hline \text { Aloham Technologies } & \text { Processor } & \$ 325 \\ \hline \text { Aloham Technologies } & \text { Speakers } & \$ 88 \\ \hline \text { MindRoot Hardwares } & \text { Flashdrive } & \$ 9 \\ \hline \text { MindRoot Hardwares } & \text { Graphics Card } & \$ 299 \\ \hline \text { MindRoot Hardwares } & \text { CD-ROM } & \$ 88 \\ \hline \text { MindRoot Hardwares } & \text { Bluetooth Device } & \$ 80 \\ \hline \end{array}\] -Calculate the mean cost per order.

A) $220.54 B) $174.70 C) $159 D) $88 A) $220.54 B) $174.70 C) $159 D) $88

Exam 4: Descriptive Statistical Measures

The table below shows the daily frequency of female customers at a particular ice cream shop during discount sale periods. The data is collected for 5 days. Calculate the mean for the data. Female Customer Frequency Days (x) Frequency (f) 1 0 2 5 3 8 4 11 5 18

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Question 61

For an odd number of observations, the median is the mean of the two middle numbers.

(True/False)

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Question 62

The is a formal statistical measure for categorical data, such as defects or errors in quality control applications or consumer preferences in market research.

(Multiple Choice)

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Question 63

A z-score of 1.0 means that .

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Question 64

State the three empirical rules in standard deviation.

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Question 65

Which of the following is a similarity between a midrange and a mean?

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Question 66

Which of the following cases require the mean of a sample to be calculated using the formula $\bar { x } = \frac { \sum _ { i = 1 } ^ { N } f _ { i } x _ { i } } { N }$ , where N represents the sample size?

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Question 67

The following table lists the amounts paid in mortgages as a percentage of the household income in the town Aponia. Calculate the variance and standard deviation of the data, if mean is given as 22.4%. The percentage (x) values are estimated as midpoints of each percentage range. Mortgage as a percentage of household income in Aponia Group in \% Percentage (x) Number of households (f) 0-10 5 4567 10-20 15 6562 20-30 25 3356 30-40 35 2975 40-50 45 1644 50-60 55 1376

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Question 68

Which of the following describes a positively skewed histogram?

(Multiple Choice)

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Question 69

How is the return to risk described in financial statistics?

(Multiple Choice)

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Question 70

Compare and contrast methods of summarizing and describing data Use the spreadsheet below to answer the following question(s). Below is the table showing rate of shoes sold per day and the highest-priced shoe sold that day for a one-week period. The rate of shoes sold per day (X) and the price of the shoes (Y). Shoes sold in \% (X) Price (Y) 15 \ 48 27 \ 55 10 \ 40 13 \ 88 25 \ 53 9 \ 47 18 \ 40 -Use Excel to calculate the standard deviation for Y.

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Question 71

Which of the following is the equation for calculating the coefficient of variation (CV)?

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Question 72

How can outliers be identified in a data set?

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Question 73

Compare and contrast methods of summarizing and describing data Use the table below to answer the following question(s). Below is a table showing the costs per order of items bought by a computer hardware store. Supplier Item Description Cost per Order Aloham Technologies Monitors \ 250 Aloham Technologies Hard Disks \ 220 Aloham Technologies Power Supply \ 88 Aloham Technologies Graphics Card \ 300 Aloham Technologies Processor \ 325 Aloham Technologies Speakers \ 88 MindRoot Hardwares Flashdrive \ 9 MindRoot Hardwares Graphics Card \ 299 MindRoot Hardwares CD-ROM \ 88 MindRoot Hardwares Bluetooth Device \ 80 -Calculate the mean cost per order.

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Question 74

Which of the following is true of variance?

(Multiple Choice)

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Question 75

The table below shows the daily frequency of female customers at a particular ice cream shop during discount sale periods. The data is collected for 5 days. Calculate the mean for the data. Female Customer Frequency Days (x) Frequency (f) 1 0 2 5 3 8 4 11 5 18

For an odd number of observations, the median is the mean of the two middle numbers.

The is a formal statistical measure for categorical data, such as defects or errors in quality control applications or consumer preferences in market research.

A z-score of 1.0 means that .

State the three empirical rules in standard deviation.

Which of the following is a similarity between a midrange and a mean?

Which of the following cases require the mean of a sample to be calculated using the formula $\bar { x } = \frac { \sum _ { i = 1 } ^ { N } f _ { i } x _ { i } } { N }$ , where N represents the sample size?

Which of the following describes a positively skewed histogram?

How is the return to risk described in financial statistics?

Which of the following is the equation for calculating the coefficient of variation (CV)?

How can outliers be identified in a data set?

Which of the following is true of variance?

Business Analytics

Analytics on Spreadsheets

Visualizing and Exploring Data

Probability Distributions and Data Modeling

Sampling and Estimation

Statistical Inference

Trendlines and Regression Analysis

Forecasting Techniques

Introduction to Data Mining

Spreadsheet Modeling and Analysis

Monte Carlo Simulation and Risk Analysis

Linear Optimization

Applications of Linear Optimization

Integer Optimization

Decision Analysis

Filters

Exam 4: Descriptive Statistical Measures

The table below shows the daily frequency of female customers at a particular ice cream shop during discount sale periods. The data is collected for 5 days. Calculate the mean for the data. Female Customer Frequency Days (x) Frequency (f) 1 0 2 5 3 8 4 11 5 18

For an odd number of observations, the median is the mean of the two middle numbers.

The is a formal statistical measure for categorical data, such as defects or errors in quality control applications or consumer preferences in market research.

A z-score of 1.0 means that .

State the three empirical rules in standard deviation.

Which of the following is a similarity between a midrange and a mean?

Which of the following cases require the mean of a sample to be calculated using the formula xˉ=∑i=1NfixiN\bar { x } = \frac { \sum _ { i = 1 } ^ { N } f _ { i } x _ { i } } { N }xˉ=N∑i=1N​fi​xi​​ , where N represents the sample size?

Which of the following describes a positively skewed histogram?

How is the return to risk described in financial statistics?

Which of the following is the equation for calculating the coefficient of variation (CV)?

How can outliers be identified in a data set?

Which of the following is true of variance?

Business Analytics

Analytics on Spreadsheets

Visualizing and Exploring Data

Probability Distributions and Data Modeling

Sampling and Estimation

Statistical Inference

Trendlines and Regression Analysis

Forecasting Techniques

Introduction to Data Mining

Spreadsheet Modeling and Analysis

Monte Carlo Simulation and Risk Analysis

Linear Optimization

Applications of Linear Optimization

Integer Optimization

Decision Analysis

Filters

Which of the following cases require the mean of a sample to be calculated using the formula $\bar { x } = \frac { \sum _ { i = 1 } ^ { N } f _ { i } x _ { i } } { N }$ , where N represents the sample size?