For the expression in Column I, choose the expression from Column II that completes an identity. Column I Column II 1equals= ▼ A. sine squared x plus cosine squared xsin2x+cos2x B. cosine xcosx C. secant squared xsec2x D. StartFraction sine x Over cosine x EndFraction sinx cosx E. cotangent xcotx

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?

Adiverr from the university of florida women’s swimming and diving team is competing in the ncaa zone b championships

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x