A random sample is also called an unbiased sample. True False A company surveys every tenth person in the phone book. What type of sampling did the company use? biased sample self-selected sample stratified sample systematic sample Fifty students were randomly selected to take part in a survey about their favorite school lunch. Each student was allowed to only pick one item. The results are shown below. Food Item Preferred- Number of Students pizza- 27 cheeseburger- 14 salad bar- 9 Based on the information above, if the school served 500 lunches, how many pizzas can they expect to serve? 27 270 140 90

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A random sample is also called an unbiased sample. True False A company surveys every tenth person in the phone book. What type of sampling did the company use? biased sample self-selected sample stratified sample systematic sample Fifty students were randomly selected to take part in a survey about their favorite school lunch. Each student was allowed to only pick one item. The results are shown below. Food Item Preferred- Number of Students pizza- 27 cheeseburger- 14 salad bar- 9 Based on the information above, if the school served 500 lunches, how many pizzas can they expect to serve? 27 270 140 90

Mathematics
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a randomized sample can be biased, but generally we randomize our sample from a population so we can avoid bias.
so false?
look at the key phrase I used "BUT"

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idk number 2 :(
that means you did not do your reading
do you want a book to use? it will have what you need for your statistics course
@imqwerty question 2
I think its Systematic

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