Find the diameter of the given circle.
A. 1
m
B. 
m
C. 
m
D. 2
m
Answer: A
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Identify which of these types of sampling is used: simple random, stratified, systematic, or convenience.The name of each contestant is written on a separate card, the cards are placed in a bag, and three names are picked from the bag.
A. Systematic B. Stratified C. Convenience D. Simple random
c = 11.6 and b = 2.8. Find é.
a. 13.97ø
b. 13.57ø
c. 39.93ø
d. 76.03ø
e. 76.43ø
Estimated crude oil reserves in a certain year was about 1,100 billion barrels. If the average consumption of crude oil is x barrels per day, what equation describes how many days the oil reserves will last?
Roger Hunt intends to purchase one of two car dealerships currently for sale in a certain city. Records obtained from each of the two dealers reveal that their weekly volume of sales, with corresponding probabilities, are as follows.
The average profit/car at Dahl Motors is $367, and the average profit/car at Farthington Auto Sales is $439.
If Roger's objective is to purchase the dealership that generates the higher weekly profit, which dealership should he purchase? (Compare the expected weekly profit for each dealership.)
a. Farthington Auto Sales
b. Dahl Motors
c. either of the two