Question

1. Suppose you have a variable X~N(8, 1.5). What is the probability that you have values...

1. Suppose you have a variable X~N(8, 1.5). What is the probability that you have values between (6.5, 9.5)? Please provide values to 2 decimal points

Among females in the US between 18 and 74 years of age, diastolic blood pressure is normally distributed with mean µ=77mmHg and standard deviation σ=11.6mmHg

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

As it is not mentioned above that if X follows Normal distribution with =8 and =1.5

or X follows Normal distribution with =8 and =1.5

hence solution is provided for both the cases.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Adult females in the US have normally distributed diastolic blood pressures with mean μ = 77...
Adult females in the US have normally distributed diastolic blood pressures with mean μ = 77 mm Hg and standard deviation σ = 11.6 mm Hg. Use this information to answer the following questions: (a) 95% of adult females have diastolic pressures in what range? Enter the answer as an interval.(Use the 68-95-99.5 Rule) (b) Sophia’s diastolic blood pressure is 68. What is the z-score of this value? (Use The formula for z-score) (c) If we choose a woman at...
Example 1: Among females in the US in a given age cohort, a diastolic blood pressure...
Example 1: Among females in the US in a given age cohort, a diastolic blood pressure is normally distributed with mean µ = 95 mm Hg and standard deviation σ = 15 mm Hg. a) What is the probability that a randomly selected woman has a diastolic blood pressure less than 90 mm Hg? b) What is the probability that she has a diastolic blood pressure greater than 95 mm Hg? c) What is the probability that she has a...
A random variable x is normally distributed:  x~N(μ=74, σ=4.3). What percent of the population values will be...
A random variable x is normally distributed:  x~N(μ=74, σ=4.3). What percent of the population values will be greater than 77.9? Enter in percent form (without %), correct to two digits after the decimal point:    We want to change μ, without changing σ, such that in this new distribution, 30% of the values would be higher than 77.9. Determine the new value of μ. Give the answer correct to two digits after the decimal point:
Suppose we have the following paired observations of variables X and Y: X         Y 18        40...
Suppose we have the following paired observations of variables X and Y: X         Y 18        40 14        30 20        20 22        20             19        10             27        0 Calculate the values of the sample covariance and sample correlation between X and Y. Using this information, how would you characterize the relationship between X and Y?             (12 points) Suppose X follows a normal distribution with mean µ = 50 and standard deviation σ = 5. (10 points) What is the...
1. Assume the random variable X represents the concentration of bacteria in a contaminated liquid, and...
1. Assume the random variable X represents the concentration of bacteria in a contaminated liquid, and that X is normally distributed with a mean µ=250 ppm and a standard deviation σ=70 ppm. Compute the approximate probability that Danielle would randomly select a container with a reading greater than 140 ppm. Now, suppose that the value of the standard deviation was smaller, 40 ppm instead of 70 ppm. What would this tell us about the bacteria concentration in randomly selected container?...
1)The distribution of log-cell counts of red blood cells for women age 25-30 is approximately normally...
1)The distribution of log-cell counts of red blood cells for women age 25-30 is approximately normally distributed with µ=1.5 cells/microliter and σ=0.1cells/microliter. Which of the following is true? Question 8 options: P(1.5 - .02 < X < 1.5 + .02) = .68 P(1.5 - .02 < X < 1.5 + .02) = .95 P(1.5 - .02 < X < 1.5 + .02) = .9974 2) which statements are true about Normal random variable X (X~N(μ , σ ))? (Choose ALL...
1. Let the random variable X represent the number of walks you take a day. Also,...
1. Let the random variable X represent the number of walks you take a day. Also, assume that the number of walks you take is uniformly distributed between 0 and 3; that is, you are equally likely to take 0, 1, 2, or 3 walks a day. a.What type of distribution is the random variable X? b. What is the probability that on a randomly chosen day, you walk exactly 0 walks? c. What is the probability that on a...
Question A random variable X takes the values –2, –1, 1 and 2 but you do...
Question A random variable X takes the values –2, –1, 1 and 2 but you do not know the probability distribution. Which of the following statements is true? The expected value could be –1.5 The expected value could be 3 The expected value must be one of the values –2, –1, 1 or 2 The expected value must lie between -1 and +1
Problem 7 Suppose you have a random variable X that represents the lifetime of a certain...
Problem 7 Suppose you have a random variable X that represents the lifetime of a certain brand of light bulbs. Assume that the lifetime of light bulbs are approximately normally distributed with mean 1400 and standard deviation 200 (in other words X ~ N(1400, 2002)). Answer the following using the standard normal distribution table: Approximate the probability of a light bulb lasting less than 1250 hours. Approximate the probability that a light bulb lasts between 1360 to 1460 hours. Approximate...
1. Let x be a continuous random variable. What is the probability that x assumes a...
1. Let x be a continuous random variable. What is the probability that x assumes a single value, such as a (use numerical value)? 2. The following are the three main characteristics of a normal distribution. The total area under a normal curve equals _____. A normal curve is ___________ about the mean. Consequently, 50% of the total area under a normal distribution curve lies on the left side of the mean, and 50% lies on the right side of...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT