W12 Reading Quiz: Probability and Confidence Intervals: Math for the Real World 1. Did you complete the online lesson by watching the videos, reading the text in its entirety, and working through the interactive practice problems? - Yes, I completed the online lesson. 2. Last year, 838 of the 1,377 residents in a small town owned more than one vehicle. Use this historical data to find the probability that a randomly selected resident in this small town owns more than one vehicle. Please round to two decimal places and enter your answer as a number between 0 and 1. - 0.61 3. Last year, 405 of the 1,279 residents in a small town were under 18 years of age. Use this historical data to find the probability that a randomly selected resident in this small town is under 18 years of age. Please round to two decimal places and enter your answer as a number between 0 and 1. - 0.32 4. Use the following probability model to answer the question. Event: For each adult resident in a city we ask how many vehicles they own Find the probability that an adult resident has 3 or more vehicles. Give your answer as a number between 0 and 1. - 0.17 5. Use the following probability model to answer the question. Event: For each adult resident in a city we ask how many vehicles they own. Find the probability that an adult resident has 3 or more vehicles. Give your answer as a number between 0 and 1. - 0.04 6. You asked a sample of individuals what kind of animal is their favorite. Of the 167 individuals in your sample, 52 of them answered "dog". Which of the following gives a 95% confidence interval for the true percentage of individuals whose favorite animal is a dog. - (23.4%, 38.9%) 7. A news article reports that 52% of voters plan to vote for Vicente and 48% of voters plan to vote for Raul. The margin of error is 3%. Is there enough statistical evidence to say that Vicente is in the lead? - No. Because the confidence intervals overlap we do not have enough evidence to say the parameters are different.

Probability And Confidence Intervals Math For The Real World

Related Documents

Description

Related Documents

Struggling with your assignment and deadlines?

Free up your schedule!

Take 5 seconds to unlock