Question

The load was assumed to have a normal dist with mean of 20 pounds. Also, the...

The load was assumed to have a normal dist with mean of 20 pounds. Also, the probability that the load is between 16 and 24 pounds is .34. On the basis of this info, find the variance of the load?

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

Homework Answers

Answer #1

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
The weight of the load carrying a small cargo truck is 2050 pounds with a variance...
The weight of the load carrying a small cargo truck is 2050 pounds with a variance of 12100 lbs 2. The total load is known to follow a Normal distribution. A. A truck gets a fine if it carries a weight greater than 2225 pounds. What is the probability that a truck will receive a fine over weight? (10 pts) B. What weight should a truck take to be at the 90 percent percentile? (10 pts) C. What is the...
If student SAT scores are assumed to have a normal distribution with mean 1000 and standard...
If student SAT scores are assumed to have a normal distribution with mean 1000 and standard deviation 100, what percentage of students can be expected to have SAT scores between 900 and 1100? Question 5 options: 99% 95% No answer is correct. 68% 52%
1) Adult Golden Retrievers have a mean weight of 64 pounds with a standard deviation of...
1) Adult Golden Retrievers have a mean weight of 64 pounds with a standard deviation of 8 pounds. If you take a random sample of 50 adult Golden Retrievers, what would be the standard deviation of the sample distribution, σ¯¯¯XσX¯? 64 pounds 1.13 pounds 8 pounds 9.05 pounds 2) Adult Golden Retrievers have a mean weight of 64 pounds with a standard deviation of 8 pounds. If you take a random sample of 35 gold retrievers, what is the probability...
1. Scores on a standardized lesson are assumed to follow a normal distribution, with a mean...
1. Scores on a standardized lesson are assumed to follow a normal distribution, with a mean of 100 and a standard deviation of 32. Five tests are randomly selected. What is the mean test score? (? ) What is the standard error of the scores? ( ?) X XXn NOTE: The standard error is another name for the standard deviation of , that is, standard error = . X Mean = 100, standard error = 4.53 Mean = 100, standard...
5. Horses in a stable have a mean weight of 950 pounds with a standard deviation...
5. Horses in a stable have a mean weight of 950 pounds with a standard deviation of 77 pounds. Weights of horses follow the normal distribution. One horse is selected at random. a) What is the probability that the horse weighs less than 900 pounds? b) What is the probability that the horse weigh more than 1,100 pounds? c) What is the probability that the horse weighs between 900 and 1,100 pounds? d) What weight is the 90th percentile? (Round...
Consider the current in a piece of cable is assumed to have a normal distribution with...
Consider the current in a piece of cable is assumed to have a normal distribution with a mean of 10 mA and a standard deviation of 2 mA A. What is the probability that the readings measured of a random piece of cable exceeds 13 mA B. What is the probability that the readings measured of a random piece of cable is between 5.3 mA and 12.8 mA C. Consider the cable to be not effective if the measured current...
The mean mass for ostrich eggs is 3.1 pounds, and standard deviation is .5 pounds. The...
The mean mass for ostrich eggs is 3.1 pounds, and standard deviation is .5 pounds. The masses have been found to be normal in distribution. Use this information to answer the following questions. (a) Determine the probability that a randomly selected ostrich egg has a mass of more than 3.2 pounds. (b) Determine probability that 9 randomly selected ostrich eggs have masses with sample mean more than 3.2 pounds. (c) For part b, was it necessary to know that the...
Weights (X) of men in a certain age group have a normal distribution with mean μ...
Weights (X) of men in a certain age group have a normal distribution with mean μ = 190 pounds and standard deviation σ = 20 pounds. Find each of the following probabilities. (Round all answers to four decimal places.) (a) P(X ≤ 220) = probability the weight of a randomly selected man is less than or equal to 220 pounds. (b) P(X ≤ 165) = probability the weight of a randomly selected man is less than or equal to 165...
0.95 is the probability that a device will not fail under a given axial load. What...
0.95 is the probability that a device will not fail under a given axial load. What is the probability among 16 devices at least three will fail? Find the mean , variance and the standard deviation
The weight of a type of dog follows Normal distribution with mean of 44 pounds and...
The weight of a type of dog follows Normal distribution with mean of 44 pounds and standard deviation of 3 pounds. 1. What is the probability a dog of this type will weigh more than 100 pounds? (Show your work.)   2. What is the probability a dog of this type will weigh more than 10 pounds? (Show your work.)
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT