Author Question: A recent survey in Montana revealed that 60 of the vehicles traveling on highways, where speed ... (Read 26 times)

leilurhhh

  • Hero Member
  • *****
  • Posts: 560
A recent survey in Montana revealed that 60 of the vehicles traveling on highways, where speed limits are posted at 70 miles per hour, were exceeding the limit. Suppose you randomly record the speeds of ten vehicles traveling on US 131 where the speed limit is 70 miles per hour. Let X denote the number of vehicles that were exceeding the limit. Find the expected number of vehicles that are traveling on Montana highways and exceeding the speed limit.

Question 2

The difference between the lower class limits of adjacent classes provides the _____.
 a. number of classes
  b. class limits
  c. class midpoint
  d. class width



cici

  • Sr. Member
  • ****
  • Posts: 325
Answer to Question 1

E(X) = 6

Answer to Question 2

d



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

leilurhhh

  • Hero Member
  • *****
  • Posts: 560
Both answers were spot on, thank you once again



cici

  • Sr. Member
  • ****
  • Posts: 325

 

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

For a complete list of videos, visit our video library