Assume that blood pressure readings are normally distributed with mean of 125 and a standard deviation of 4.8. If 36 people are randomly selected, find the de probability that their mean blood pressure will be less than 127. O0.0062 O 0.6615 0.8193 O 0.9938

The temperature distribution of city A has a population mean u = 21.4, and standard deviation o = 4.32. You randomly select 19 days and get the temperature for these days. What is the probability that your sample mean is less than 22.14? Give your answer to 4 decimal places.

Assume that adults have IQ scores that are normally distributed with a mean of μ=105 and a standard deviation σ=20. Find the probability that a randomly selected adult has an IQ between 93 and 117.

The random variable X has a uniform distribution with values between 14 and 20 what is the standard deviation of ? round your answer to the nearest thousandth.

Assume the random variable X is normally distributed with mean μ=50 and standard deviation σ=7. Find the 87th percentile.

Assume that females have pulse rates that are normally distributed with a mean of µ= 76.0 beats per minute and a standard deviation of o = 12.5 beats per minute Complete parts (a) through (c) below. a. If 1 adult female is randomly selected, find the probability that her pulse rate is less than 82 beats per minute.

An unknown distribution has a mean of 80 and a standard deviation of 12. A sample size of 95 is drawn randomly from the population. Find P (∑X > 7,650).

Assume the random variable X is normally​ distributed, with mean μ=47 and standard deviation σ=8. Find the 14th percentile.

Suppose the mean cholesterol levels of women age 45-59 is 5.2 mmol/l and the standard deviation is 0.7 mmol/l. Assume that cholesterol levels are normally distributed. Find the probability that a woman age 45-59 has a cholesterol level above 6.1 mmol/l (considered a high level). Round to four decimal places.P(x > 6.1) =  Suppose doctors decide to test the woman’s cholesterol level again and average the two values. Find the probability that this woman’s mean cholesterol level for the two tests is above 6.1 mmol/l. Round to four decimal places.P(x̄ > 6.1) =  Suppose doctors being very conservative decide to test the woman’s cholesterol level a third time and average the three values. Find the probability that this woman’s mean cholesterol level for the three tests is above 6.1 mmol/l. Round to four decimal places.P(x̄ > 6.1) =

Suppose female heights follow a normal distribution with mu= 164.7cm and standard deviation =7.1 cm.  What is the probability that a randomly selected female is 180.0cm or taller? State your answer in 4 decimal places.