9 If the absences increased by 4 what will happen to the final grade 10 If the

# 9 if the absences increased by 4 what will happen to

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9. If the absences increased by 4 what will happen to the final grade ? 10. If the absences decrease by 3 what will happen to the final grade ? 10. Interpret a and b? Ms. Lubna Ineirat 6
Question 3: 1. What is the probability of selecting a male student? 2. What is the probability of selecting an AB blood type and female ? 3. What is the probability of selecting a male or B blood type? 4. What is the probability of selecting a O or B blood type? 5. Are “ being a male” and “ A blood type” independent? Why? 6. What is the probability of selecting an O blood type, given the selected is a female? 7. What is the probability of selecting a female , given the selected is a AB blood type ? 8. given the selected is a O blood type? What is the probability of selecting a male students? Ms. Lubna Ineirat 7 A B AB O Total Male 35 210 280 175 Female 15 90 120 78 Total
Question4: The weight of newborns follows normal distribution with average 3200gram and standard deviation 800gram. Find the following probability . 1.The probability of weight is less than 2000gram? 2.The probability of weight is more than 3500gram? 3.The probability that the weight is equal 3200gram?
4.The probability that the weight is between 2500 and 4000gram? 5.find the weight which 80% of the weight below it? 6.find the weight which 40% of the weight above it?

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