Calculating Probability in a Normally Distributed Sample

The number of column inches of classified advertisements appearing on Mondays in a certain daily newspaper is normally distributed with a population mean of 320 and a population standard deviation of 20 inches.

1. Referring to the table above, for a randomly chosen Monday, what is the probability there will be less than 340 column inches of classified advertisements?

2. Referring to the table above, for a randomly chosen Monday, what is the probability there will be between 280 and 360 column inches of classified advertisements?

Solution Preview

The number of column inches of classified advertisements appearing on Mondays in a certain daily newspaper is normally distributed with a population mean of 320 and a population standard deviation of 20 inches.

1. Referring to the table above, for a randomly chosen Monday, what is the probability there will be less than ...

Solution Summary

This solution provides step by step calculations for finding probability.

... with µ=100 and ơ=20, the probability of obtaining ... 9. A vertical line drawn through a normal distribution at z ... with µ=40 and ơ=8, the distribution of sample...

... we could assume a normal distribution for the ... This solution helps calculate probability for sale of ... How to calculate probability A company examines homeowner's ...

... a) the probability cannot be calculated because we do ...distribution is not known, we cannot calculate probability. Uses Excel for calculating probabilities in a ...

Calculate the probability that the sample... At a computer manufacturing company, the actual size of computer chips is normally distributed with a mean of 1 ...

... values corresponding to z can be seen from the standard normal tables or calculated using excel ...Calculates probability using normal distribution. ...

... 9) How to calculate population percentages based on standard deviation ... it can use probability to calculate how far ... increases or decreases, the probability of a ...

... with mean and standard deviation and calculate a sample... in a Z table, or use a calculator with a ... the central limit theorem, and calculating probability from a ...

... of the z-distribution when calculating this probability. ... in body was calculated by subtracting the corresponding ... function will allow us to calculate our answer ...