Random sample of 250 UCLA students were chosen to study the relationship between the amount of caffeine a student drinks and the grade a student earns in English 100. That is, we want to know if the grade earned in english 100 is independent of the amount of caffeine that a student drinks. passing: 0cups 79, failing 0cups 25
passing 1-2cups 84, failing 28,
passing 3ormore cups 30, failing 4

a)What is the expected value for a student who drinks 1-2 cups/day and passes the class?
b)Using a 1% level of significance and the p-value, what should be the decision regarding the null hypothesis?
c)test statistic

Which function has the same domain as y=2x

Segment an is an altitude of right δabc with a right angle at a. if ab = 2, squared 5 in and nc = 1 in, find bn, an, ac.

Barbara has a good credit history and is able to purchase a car with a low-interest car loan. she co-signs a car loan for her friend jen, who has poor credit history. then, jen defaults on the loan. who will be held legally responsible by the finance company and why? select the best answer from the choices provided. a. barbara will be held legally responsible because she has a good credit history. b. jen will be held legally responsible because she drives the car. c. barbara will be held legally responsible because she is the co-signer. d. jen will be held legally responsible because she has a poor credit history. the answer is a