1. Identify the sampling technique used to obtain samples in the following situations RANDOM / STRATIFIED / CLUSTER / SYSTEMATIC / CONVENIENCE a) Taking a survey of the first 50 students walking into the library. b) Dividing a river into 20 regions and then randomly selecting 5 of the regions to test the cleanliness of the water. c) Placing the names of every student in a hat and choosing 5 names for a group activity. d) Selecting every 25th can of soda on an assembly line to check for defects. e) Dividing the customers of a ice cream parlor into age groups and asking each age group their personal preferences of flavors and toppings.

1. Identify the sampling technique used to obtain samples in the following situations RANDOM / STRATIFIED / CLUSTER / SYSTEMATIC / CONVENIENCE a) Taking a survey of the first 50 students walking into the library. b) Dividing a river into 20 regions and then randomly selecting 5 of the regions to test the cleanliness of the water. c) Placing the names of every student in a hat and choosing 5 names for a group activity. d) Selecting every 25th can of soda on an assembly line to check for defects. e) Dividing the customers of a ice cream parlor into age groups and asking each age group their personal preferences of flavors and toppings.

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Description: 1. Identify the sampling technique used to obtain samples in the following situationsRANDOM / STRATIFIED / CLUSTER / SYSTEMATIC / CONVENIENCEa) Taking a survey of the first 50 students walking into the library.b) Dividing a river into 20 regions and

MATLAB: An Introduction with Applications

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ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

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Concept explainers

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.

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1. Identify the sampling technique used to obtain samples in the following situations
RANDOM / STRATIFIED / CLUSTER / SYSTEMATIC / CONVENIENCE
a) Taking a survey of the first 50 students walking into the library.
b) Dividing a river into 20 regions and then randomly selecting 5 of the regions to test the
cleanliness of the water.
c) Placing the names of every student in a hat and choosing 5 names for a group activity.
d) Selecting every 25th can of soda on an assembly line to check for defects.
e) Dividing the customers of a ice cream parlor into age groups and asking each age group their
personal preferences of flavors and toppings.

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