Exam 10: Data Description and Probability Distributions

In the English department of a midwestern university, the annual salaries of five faculty members are $34,000, $35,000, $36,000, $36,500 and $65,000. Compute the median.

Construct a histogram for the binomial distribution ,and compute the mean and standard deviation: -n = 7 and p =

If an investor purchased 50 shares of Pearson Education stock at $85 per share, 90 shares at $105 per share, 120 shares at $110 per share and another 75 shares at $130 per share. What is the mean cost per share?

Which single measure of central tendency - mean, median, or mode - would you say best describes the given set of measurements? -

Construct the specified histogram: -Eighty U. S households were surveyed about MP3 players. The table gives the frequency distribution for the data. Construct a histogram.

Here are the commutes (in miles) for a group of six students. 14.7 16.3 34.0 33.7 22.6 16.0 Find the range rounded to one decimal place.

Which single measure of central tendency - mean, median, or mode - would you say best describes the given set of measurements? -

Given a normal distribution with mean 120 and standard deviation 5, find the number of standard deviations the measurement is from the mean. Express the answer as a positive number. -134.9

Find the mean for the data set: 2, 11, 35, 2, 9, 35, 11, 9, 7, 2, 2, 2, 2, 9, 2

Find the median for the following grouped data.

Find the standard deviation for the following data set: 2, 2, 2, 5, 5, 6, 6, 8, 8, 9

What proportion of the following sample of ten measurements lies within 1 standard deviation of the mean?

Construct a broken-line graph of the data in the table: -The following table shows the number of computer sales made at Computer Buy over five months. Use time on the horizontal scale for your line graph.

Use the rule-of-thumb test to check whether a normal distribution (with the same mean and standard deviation as the binomial distribution) is a suitable approximation for the binomial distribution with given the properties: -n = 400, p = 0.06

Here are the prices for 8 different MP3 players. Find the standard deviation. $195 $358 $201 $276 $161 $301 $387 $128 Round to one decimal place.

Given a normal distribution with mean 120 and standard deviation 5, find the number of standard deviations the measurement is from the mean. Express the answer as a positive number. -107

Following is a sample of the percent increases in the price of a house from 2002 to 2007 in 8 regions of the U. S. 75 130 145 150 150 225 225 300 Find the mean.

A normal distribution has mean 200 and standard deviation 50. Find the area under the normal curve from the mean to 224.

Construct the specified histogram: -Construct a histogram for the following frequency table.

The test scores of 40 driver license applicants are summarized in the frequency table below. Find the standard deviation. Round your answer to one decimal place.