Davina selected 50 people at random and asked them whether they had watched the documentary on Antarctica on television the previous night. She repeated this survey using the same method three more times.
Do any of the surveys appear to be biased?
Watched Antarctica documentary last night? Survey
1 2 3 4
Yes 13 14 35 17
No 37 36 15 13
A.
Yes, because all four surveys do not have identical results.
B.
Yes, because the results from Survey 3 differ significantly from the other surveys' results.
C.
No, because Davina surveyed the same number of people each of the four times.
D.
No, because all four surveys have about the same number of people saying "yes" and about the same number of people saying "no."
Answers (2)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Davina selected 50 people at random and asked them whether they had watched the documentary on Antarctica on television the previous night. ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
At a baseball game, a vender sold a combined total of 138 sodas and hotdogs. the number of sodas sold was 30 more than the number of hot dogs sold. find the number of sodas sold and the number of hot dogs sold
Answers (1)
When Ryan walks into the auditorium, there are 5 available seats in the first row, 10 in the second row, and 2 in the third row. Ryan randomly selects a seat. What is the probability, to the nearest percent, that his seat will be in the first row?
Answers (1)
Olivia has 10 buckets of blueberries that each have 60 blueberries. Olivia eats 80 blueberries and then wants to share the rest with her 8 friends.
Answers (2)
Fill in the missing numbers to complete the pattern: 6.30, 6.50, 7.10, 7.30
Answers (1)
On Monday, 356 students went on a trip to the zoo. All 7 buses were filled and 6 students had to travel in cars. How many students were in each bus? Make an equation
Answers (1)
New Questions in Mathematics
Chad's rectangle measures 4 1/3 units by 3 1/4 units. What is the area?
Answers (1)
What are the common factors of 40 and 72?
Answers (1)
A circle has the equation (x-13) 2 + (y-1) 2=4. A: What is the center of the circle? B: What is the radius of the circle?
Answers (1)
Tim earns $150/week plus $15.00 for each desk he assembles. Write an inequality to represent how many desks he needs assemble to make at least $400 in one week
Answers (1)
X2 + 3x + 2 What is the factor?
Answers (1)