Questions on weighted average-arithmetic mean-mode-median

Assignment Help Basic Statistics

Reference no: EM1320266

Calculations on the Measures of Central Tendency 1. Last year a small statistical consulting company paid each of its five statistical clerks $22,000, two statistical analysts $50,000 each, and the senior statistician/owner $270,000. The number of employees earning less than the mean/average salary is: ____ HINT: CALCULATE THE WEIGHTED AVERAGE

a. 0

b. 4

c. 5

d. 6

e. 7

2. The heights in centimeters of 5 students are: 165, 175, 176, 159, 170. The sample median and sample mean are respectively:

a. 170, 169

b. 170, 170

c. 169, 170

d. 176, 169

e.176, 176

3. The term test scores of 15 students enrolled in a Business Statistics class were recorded in ascending order as follows: 4, 7, 7, 9, 10, 11, 13, 15, 15, 15, 17, 17, 19, 19, 20 After calculating the mean, median, and mode, an error is discovered: one of the 15's is really a 17. What measure of central tendency will change?:

a. the mean only

b. the mode only

c. the median only

d. the mean and mode

e. all three measures

a. Calculate the mean or average age ___________________

b. Calculate the median age ___________________________

a. Identify the mode in the following data: 2, 4, 14, 8, 10, 14, 8, 4, 8 Mode __________________

b. Identify the mode in the following data: 666, 2, 5, 999, 11, 11, 12 Mode _________________

6. Find the median in the following data set:

12, 10, 9, 5, 30, 3, 25 Median = ____________________

20, 21, 22, 23, 24, 25, 26, 27, 28, 29 Median = ____________________

Reference no: EM1320266

Questions Cloud

Examine the conditions for bragg reflection : Find out the longest wavelength electrons that can produce a first-order maximum.

Know that the far increase on cable car rides : Know that the far increase on cable car rides was 67%. Price is $5 one way. Prices were raised to help ease a $57 million deficit.

Corporate responsibility and corporate philanthropy : What are the differences between corporate responsibility and corporate philanthropy? Explain how a business benefits when it has an impact on the community.

Relative demand schedule to your diagram : Add a relative demand schedule to your diagram that implies that Malaysia is incompletely specialized.

Questions on weighted average-arithmetic mean-mode-median : The heights in centimeters of 5 students are: 165, 175, 176, 159, 170. The sample median and sample mean are respectively:

Demand for alternative fuels increasedmade from corn : As oil prices rose during 2006, the demand for alternative fuels increased. Ethanol, one alternative fuel, is made from corn.

What minimum diameter must the eyepiece lens : An elevator releases 11200J of gravitational potential energy as descending 4m between floors. How much does elevator weigh.

Chrysler announced a new incentive program on its minivans : Chrysler announced a new incentive program on its minivans that included subsidized interest rates also cash allowances.

How much chromium will remain after 1 year : A gymnast of mass 69.0 kg hangs from a vertical rope attached to the ceiling. You can ignore the weight of the rope and assume that the rope does not stretch. Use the value 9.81 for the acceleration of gravity.

User Account

All Pages