Student services asks the students of NCVA to complete a survey and return. This type of sample is called:
Voluntary Response Sample
Cluster Sample
Stratified Sample
Simple Random Sample
Which type of sample would MOST likely result in bias?
Using a random sample of parents of newborns to estimate the proportion of people who think there should be stricter car seat regulations.
Using a voluntary response sample to estimate the proportion of people who think there should be stricter car seat regulations.
Conducting a survey via phone calls only to estimate the proportion of people who think there should be stricter car seat regulations.
Using biased wording in a survey to estimate the proportion of people who think there should be stricter car seat regulations.
Which variable has a binomial distribution?
When tiles are drawn, with replacement, from a bag of lettered tiles, X is the number of vowels in 5 draws.
When tiles are drawn, without replacement, from a bag of lettered tiles, X is the number of times it takes to get a vowel.
When tiles are drawn, without replacement, from a bag of lettered tiles, X is the number of vowels in 5 draws.
When tiles are drawn, with replacement, from a bag of lettered tiles, X is the number of times it takes to get a vowel.