# Algebra (Normal Distribution)

The weights of 1,000 men in a certain town follow a normal distribution with a mean of 150 pounds and a standard deviation of 15 pounds.
From the data, we can conclude that the number of men weighing more than 165 pounds is about _____ , and the number of men weighing less than 135 pounds is about ____

1. 👍
2. 👎
3. 👁
1. Here is the perfect website for your problem

http://davidmlane.com/hyperstat/z_table.html

1. 👍
2. 👎
2. 45

1. 👍
2. 👎

## Similar Questions

1. ### stat

Which of the following statements is true about the t-distribution with k degrees of freedom? i. the t-distribution is symmetric ii. the t-distribution with k degrees of freedom has a smaller variance than the t-distribution with

2. ### MATH

4. The population of a small town is modelled by the function p(t)= 20(4t+3)/2t+5 , where P(t) is the population, in thousands, and t is time, in years, since the start of 1990. a) Is the population currently increasing or

3. ### statistics

Which of the following statements are correct? a. A normal distribution is any distribution that is not unusual. b. The graph of a normal distribution is bell-shaped. c. If a population has normal ditribution, the mean and the

4. ### Statistics

Suppose a certain species bird has an average weight of xbar 3.40 grams. Based on previous studies, we can assume that the weights of these birds have a normal distribution with sigma 0.29 grams. Find the sample size necessary for

1. ### Statistics

Statistics Does the frequency distribution appear to have a normal distribution using a strict interpretation of the relevant criteria? IQ Score------Frequency 50-69----------24 79-89----------228 90-109--------490

2. ### agebra

The graph represents the normal distribution of recorded weights, in pounds, of cats at a veterinary clinic. Which weights are within 2 standard deviations of the mean? Check all that apply.

3. ### AP Statistics

A family has two cats named Gordo and Flaco. Gordo weighs 15 pounds and Flaco weighs 8 pounds. A catâ€™s weight is classified as unhealthy if the weight is located in the top 5% or bottom 5% of all cat weights. The distribution of

4. ### Statistics

Under what circumstances does the sampling distribution of the proportion approximately follow the normal distribution?

1. ### statistics

1. Which of the following statements are correct? a. A normal distribution is any distribution that is not unusual. (True/False) b. The graph of a normal distribution is bell-shaped. (True/False) c. If a population has a normal

2. ### Statistics

As the degrees of freedom for the t-distribution increase, the distribution approaches the value of zero for the mean. the t-distribution. the normal distribution. the F distribution.

3. ### statistics

A simple random sample of size n = 300 is obtained from a population whose size is and whose population size is n=20,000 ans whose proportion with a specified characteristic is p=0.8. Describe the sampling distribution of P^. A)

4. ### stat

if the heights of men follow a normal distribution, and 99.7% fall between 5" and 7" what is the estimate standard deviation of the height?