سؤال في الاحصاء ch:4

[د.سارا]

ممكن تساعدوني في حل السؤال:

A recent study of 200 nurses found that of 125 female nurses , 56 had bachelor's degree. and of 75 male nurses, 34 had bachelor's degree .

if a nurse is selected at random,find the probability that the nurse is

a- A female nurse with a bachelors degree ?? 0.28

b- a male nurse?? .375

و فيه سؤال كمان: كيف اعرف مكان الاختبار؟؟

و شكرن