Determining the area under a normal curve using a standard normal distribution table.

Find the area under the normal curve for the condition. Find the percent of the area between the mean and 3.01 deviations from the mean.

Probability: Working with the standard distribution curve.

A company installs 5000 light bulbs, each with an average life of 500 hours and a standard deviation of 100 hours, and a distribution approximated by a normal curve. Find the percentage of bulbs that can be expected to last the period of time between 540 hours and 780 hours? Less than 690 hours?

Circle (pie) graph and percentages

Construct a circle graph, with sectors given in percent, to represent the data in the given table. Favorite Restaurant Style / Number of Responses Chinese/ 138 Indian/ 90 Mexican /144 Thai/ 108 Answer the question appropriately. How many people were surveyed?

Construction of a frequency table

Use the following data to construct a frequency table with the indicated class width. 31 32 32 33 34 34 34 35 35 36 37 38 Class width = 1.

Frequency Distribution and Midpoint

Use the following frequency distribution to determine the midpoint of the second class. Class/ Frequency 4-12/ 6 13-17 /10 22-26/ 7 31-35/ 4 40-44 /8 49-53/ 5

Calculating the probability from a given situation.

Find the probability of the following of getting the bridge hand of 6 of one suit, 4 of another, and 3 of another.

Understanding standard deviation and z score.

Please answer the following question: - Explain thoroughly, the concept of standard deviation. - How does range affect standard deviation? - What is a z-score, and how do z-scores relate to the mean of a set of data? - Generally speaking, how is the percentage of data which lies in between two z-scores calculated?

Saturating functions

I am doing a report on saturating functions and i need to know everything that there is to know about them.

An explanation of combinations with examples.

Explain combinations, please.

Finding the total number of ways that an outcome can occur.

If you toss six fair coins, in how many ways can you obtain at least two heads?