Mathematics, 23.10.2019 08:00 krissy1221
Janine wishes to conduct a poll to predict how many students will vote for her for class president.
which polling methods are likely to be biased?
choose all answers that are correct.
a.
five people in each of janine’s classes are selected and asked for whom they intend to vote.
b.
from a list of all students in janine’s grade, 25 students are selected at random and asked for whom they intend to vote.
c.
every 10th student from a list of all students in janine’s grade is selected and asked for whom the student intends to vote.
d.
janine chooses 5 of her friends and asks each to select another 5 students. these 25 students are asked for whom they intend to vote.
Answers: 3
Mathematics, 22.06.2019 03:00
A. the probability that a product is defective is 0.1. what is the probability that there will be 1 or less defective products out of the next 8 produced products b.the expected number of imperfections in the coating nylon for parachutes is 6 per 100 yards. what is the probability of finding 12 or fewer imperfections in 260 yards c.in a lot of 54 products there are 9 defective products. calculate the probability that not more than 1 is defective from a random sample of 17 products.
Answers: 1
Mathematics, 22.06.2019 03:00
Ashley spent half of her lunch money on a turkey sandwich. then she spent two-thirds of the money she had left on a bottle of juice and the rest of the money on a cookie. if the cookie cost $.75, how much lunch money did ashley have to start with?
Answers: 2
Janine wishes to conduct a poll to predict how many students will vote for her for class president.<...
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