An instructor wants to test whether attending class influences how students perform on an exam. There are 54 students in the class. There are 25 students who attended the class and passed the exam, 6 students who attended class and failed the exam, 8 students who skipped the class and passed the exam, 15 students who skipped the class and failed class. Please perform a statistical test and indicate whether attending class influence the exam performance

15/16 as a decimal rounded to the nearest hundredth

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest

Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 25002500 grams and a standard deviation of 800800 grams while babies born after a gestation period of 40 weeks have a mean weight of 27002700 grams and a standard deviation of 385385 grams. if a 3232-week gestation period baby weighs 21252125 grams and a 4040-week gestation period baby weighs 23252325 grams, find the corresponding z-scores. which baby weighs lessless relative to the gestation period?