I need solve this questions

QUESTION 4 Cholesterol levels in men 18 to 24 years of age are normally distributed with a mean of 178 mg/dL and a standard deviation of 41 mg/dL. What is the probability that a 20-year-old man has a cholesterol level of less than 190 mg/dL? Round your answer to 4 decimal QUESTION 5 3 Assume the cholesterol levels of adult women are normally distributed with a mean of 185 mg/dL and a standard deviation of 24. What is the probability that a randomly selected adult woman will have cholesterol exceeding 230 mg/dL? Round your answer to four decimal digits. QUESTION 6 Lengths of pregnancies are normally distributed with a mean of 269 days and a standard deviation of 15 days. Babies born before 260 days are considered premature and those born after 295 are called postmature. What are the percentages of premature and postmature babies? 25.25% and 4.78% 27.34% and 4.15% 32.04% and 3.1% 29.69% and 3.59% QUESTION 7 A vending machine automatically pours soft drinks into cups. The amount of soft drink dispensed into a cup is normally distributed with mean 215 mL and standard deviation 10 mL. A cup will overflow if the machine pours more than 225 mL. The machine has just been loaded with 575 cups. How many of these cups do you expect will overflow? Round your answer to the nearest whole number. QUESTION 8 The fill volume of an automated filling machine used for filling cans of carbonated beverage is normally distributed with a mean of 370 mL and a standard deviation of 3 mL. If all cans less than 358 or more than 373 mL are scrapped, what proportion of cans is scrapped? O 0.1587 0.0912 0.0478 0.0228 QUESTION 9 Suppose the numbers of a particular type of bacteria in samples of 1 milliliter (ml) of drinking water tend to be normally distributed, with a mean of 85 and a standard deviation of 8. What is the probability that a given 1-ml sample will contain between 80 and 105 bacteria