Question

A variable x is normally distributed with a mean of 2.34 and a standard deviation of...

A variable x is normally distributed with a mean of 2.34 and a standard deviation of 3.4.

Consider the standard normal curve. Find the area between -5.34 and 2.34.

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

Homework Answers

Answer #1

Solution :

Given that ,

mean = = 2.34

standard deviation = = 3.4

P(-5.34< x < 2.34) = P[(-5.34 - 2.34) /3.4 < (x - ) / < (2.34 - 2.34) /3.4 )]

= P( -2.26< Z < 0)

= P(Z <0 ) - P(Z <-2.26 )

Using z table,  

= 0.5 - 0.0119

area=0.4881

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
assume the random variable X is normally distributed with mean 50 in standard deviation =7 compute...
assume the random variable X is normally distributed with mean 50 in standard deviation =7 compute the probability, be sure to draw a normal curve with area corresponding to the probability shaded P(54 less than eaual to X less than equal to 66) =
Assume the random variable X is normally distributed with mean μ=50 and standard deviation σ=7. Compute...
Assume the random variable X is normally distributed with mean μ=50 and standard deviation σ=7. Compute the probability. Be sure to draw a normal curve with the area corresponding to the probability shaded. What is P(56 ≤ X ≤ 66) ?
assume the random variable X is normally distributed with a mean 80 in standard deviation 9.4...
assume the random variable X is normally distributed with a mean 80 in standard deviation 9.4 find the P (x>72) find the P (95<x<105) find x so that the area above x is .80
assume the random variable X is normally distributed with mean u=50 and standard deviation of 7....
assume the random variable X is normally distributed with mean u=50 and standard deviation of 7. What is the probability of P(X>35) and draw the curve.
A variable is normally distributed with mean 16 and standard deviation 2. A. determine the quartiles...
A variable is normally distributed with mean 16 and standard deviation 2. A. determine the quartiles of the variable obtain and interpret the 85th percentile B. Find the value that 65% of all possible values of the variable exceed C. Find the two values that divide the area under the corresponding normal curve into the middle area of 0.95 and two outside areas of 0.025 I see that this question has been answered in the past, however, they used (0.68)...
Given that X is a normally distributed variable with a mean of 50 and a standard...
Given that X is a normally distributed variable with a mean of 50 and a standard deviation of 2, find the probability that X is between 47 and 54. There should be four decimal places in your answer.
A random variable is normally distributed with a mean of 15 and a standard deviation of...
A random variable is normally distributed with a mean of 15 and a standard deviation of 2.5. Find P(X > 20) Find P(X < 16.25) Find P(13.125 < X < 17)
Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of...
Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If P(−b<z<b)=0.3278P(-b<z<b)=0.3278, find b. b=  (Round to three decimal places.) Hint: Consider symmetry on this problem and draw a picture of the normal distribution to visualize this problem. What is the area under the normal curve from 0 to b? What is the area under the normal curve from −∞-∞ to 0? Given that information, what is the area under the normal curve from...
A variable is normally distributed with mean 19 and a standard deviation of 5. Use your...
A variable is normally distributed with mean 19 and a standard deviation of 5. Use your graphing calculator to find each of the following areas. Write answers in decimal form and round to the nearest thousandth if needed: Find the area to the left of 18. Find the area to the left of 15. Find the area to the right of 16. Find the area to the right of 25. Find the area between 15 and 29.
A random variable is normally distributed with a mean of 80 and a standard deviation of...
A random variable is normally distributed with a mean of 80 and a standard deviation of 6. a) Find P(X < 75.5) b) Find P(X > 82) c) Find P(77 < X < 84.8)
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT