Blood Pressures are normal with mean 120 and standard deviation 10. What is the 75th percentile?
Blood Pressures are normal with mean 120 and standard deviation 10. What is the 75th percentile?
The blood pressure for men aged 18 to 29 is modeled with a normal density curve. The distribution has a mean of ? = 120 and a standard deviation of ? = 10. The following is the random variable distribution with the normal density curve. Use this to answer the following questions. SHOW WORK! a. (2 point) If a man has a blood pressure of 105 how many standard deviations away from the mean is his blood pressure? b. (2...
1 Diastolic blood pressures are assumed to follow a normal distribution with a mean of 87 and a standard deviation of 10. a. What proportion of people have diastolic blood pressure less than 90? n have diastolic blood pressur c. If someone has a diastolic blood pressure of 100, what percentile is he/she in? 2. Suppose that the average Lehman College student reports using social media like Facebook and Snapchat an average of 6 hours a week, with a standard...
For women aged 18-24, systolic blood pressures (in mm Hg) are normally distributed with a mean of 114.8 and a standard deviation of 13.1. -Find the 80th percentile mean blood pressure among these 4 women
8. The Centers for Disease Control reported that diastolic blood pressures of adult women in the U.S. are approximately normally distributed with mean 80.5 and standard deviation 9.9. a. Find the 30th percentile of the blood pressures. b. Find the 67th percentile of the blood pressures. C. Find the third quartile of the blood pressures.
In a normal population where the mean is 900 and the standard deviation is 25; what value of X is the 67th percentile?
In a recent study, the Centers for Disease Control reported that diastolic blood pressures of adult women in the U.S. are approximately normally distributed with mean 80.9 and standard deviation 9.9. a) What proportion of women have blood pressures lower than 70? b) What is the 80th percentile of blood pressures? c) A woman has a blood pressure of 84 mm. What percentile is her blood pressure on? (Round up the final answer to the nearest whole number.) d) A...
In a recent study, the Centers for Disease Control reported that diastolic blood pressures of adult women in the U.S. are approximately normally distributed with a mean of 80.5 and standard deviation 9.9. Round all answers to 4 decimal places. a. What proportion of women have blood pressures lower than 70? b. Find the 30th percentile for blood pressures. C. Suppose a sample of 150 women is taken. What is the probability that the sample mean blood pressure would be...
In a recent study, the Centers for Disease Control reported that diastolic blood pressures of adult women in the U.S. are approximately normally distributed with a mean of 80.5 and standard deviation 9.9. Round all answers to 4 decimal places. a. What proportion of women have blood pressures lower than 70? b. Find the 30th percentile for blood pressures. C. Suppose a sample of 150 women is taken. What is the probability that the sample mean blood pressure would be...
Statistics exam scores follow a standard normal distribution with mean 0 and standard deviation 1. Find each of the following probabilities of the given scores. (a)Less than 2.71 (b)Greater than -0.96 (c)Less than -2.18 (c)Between -1.30 and 0.45 (d)Find the 75th percentile of these Statistics exam scores. (e) Find the Statistics exam scores that can be used as cutoff values separating the most extreme (high and low) 2% of all scores.
Given a normal distribution, X, with mean, 120, and standard deviation, sigma = 49. A. What is the X value with Z-score equal to z = 2.59?_____ B. What is the probability of X is less than or equal to 283.9?____ %