# Statistics

posted by .

The annual precipitation for one city is normally distributed with a mean of 72 inches and a standard deviation of 3.5 inches. In 95% of the years, the precipitation in this city is between___ and ___

• Statistics -

From a normal distribution table, 97.5% probability corresponds to +1.96σ.

Thus μ±1.96σ corresponds to 95% of all years.

1.96σ = 1.96*3.5=6.86"

Therefore 95% of the years have precipitation between 72±6.86"

• Statistics -

n1-25, n2-36, s1 power 2=50, s2 2 power=72, m1=100. m2=105

• Statistics -

n1-25, n2-36, s1 power 2=50, s2 2 power=72, m1=100. m2=105

## Respond to this Question

 First Name School Subject Your Answer

## Similar Questions

1. ### statistics

The amount of snow fall falling in a certian mountain range is normally distributed with a mean of 83 inches, and a standard deviation of 16 inches. What is the probability that the mean annual snowfall during 64 randomly picked years …
2. ### statistics

The annual precipitation amounts in a certain mountain range are normally distributed with a mean of 88 inches, and a standard deviation of 10 inches. What is the likelihood that the mean annual precipitation during 25 randomly picked …
3. ### UCF

6) The annual precipitation amounts in a certain mountain range are normally distributed with a mean of 88 inches, and a standard deviation of 10 inches. What is the likelihood that the mean annual precipitation during 25 randomly …
4. ### Statistics

The amount of rainfall in January in a certain city is normally distributed with a mean of 4.2 inches and a standard deviation of 0.5 inches. Find the value of the quartile Q1
5. ### math

6) The annual precipitation amounts in a certain mountain range are normally distributed with a mean of 88 inches, and a standard deviation of 10 inches. What is the likelihood that the mean annual precipitation during 25 randomly …
6. ### statistics

Solve the problem. Round to the nearest tenth unless indicated otherwise. The amount of rainfall in January in a certain city is normally distributed with a mean of 4.3 inches and a standard deviation of 0.3 inches. Find the value …
7. ### Statistics

A random sample of 150 towns in a western state had a mean annual precipitation of 2.86 inches. Assume that the population standard deviation is known to be 0.78 inches. Compute the 95% confidence interval for μ.
8. ### Stats

The annual precipitation for one city is normally distributed with a mean of 28 inches and a standard deviation of 3.4 inches. Fill in the blanks. In 95% of the years, the precipitation in this city is between __________ and __________ …
9. ### Math

he annual precipitation for one city is normally distributed with a mean of 399 inches and a standard deviation of 3.3 inches. In what percentage of years is precipitation in the city between 392.4 inches and 405.6 inches?
10. ### Math

The annual precipitation for one city is normally distributed with a mean of 329 inches and a standard deviation of 2.6 inches. Find the probability that a randomly selected year will have more than 323.8 inches of rain. Express the …

More Similar Questions