FTCE 5-9 Test Prep

FTCE 5-9 Test Prep

Center for Teaching and Learning

Competency 7 Practice

1a. What is the mean test score for the 6 scores: 89, 93, 87, 86, 85, 94?


1b. The average annual wind speed for the 5 windiest cities in the U.S. is given below in miles per hour. What is the mean of these annual wind speeds? 15.4, 14.0, 13.5, 13.1, 12.9


1c. What is the median age of the 7 children whose ages are: 11, 10, 13, 11, 12, 16, 14


1d. Given below are the daily high temperatures for one winter week in Albany, New York. What is the mode of these temperatures: 39, 42, 34, 37, 39, 44, 41?


2a. Which measure of central tendency should be used?SEA College would like to prove that students with a college degree make more money on average than people with no degree. According to their data, the salaries are: $50,000, $50,000, $55,000, $45, 000, $49,000 and $200,000. Would it be best for the SEA to tell students the mean or median of the data if they want to show a high average of pay.


2b. Which measure of central tendency should be used?Tom is graduating from SEA College and would like a realistic estimate of the amount of money most new graduates earn. According to the data at SEA, the starting salaries of the last five graduates were: $50,000, $50,000, $55,000, $45, 000, $49,000 and $200,000. Would it be best for Tom calculate the mean or the median to find the most realistic view of starting salaries?


2c. Which measure of central tendency should be used?Brianna is arguing with her brother, T.J., about who is on the better soccer team. She’s using the data from their last five games. The table below shows their scores. Brianna says her team is better because they have the highest average of points. Is this correct? What measure of central tendency could T.J. use to prove her wrong?


2c. Which measure of central tendency should be used?

Brianna is arguing with her brother, T.J., about who is on the better soccer team. She’s using the data from their last five games. The table below shows their scores. Brianna says her team is better because they have the highest average of points. Is this correct? What measure of central tendency could T.J. use to prove her wrong?


2d. Which measure of central tendency should be used?Mr. Brown recorded the hours his students spend on homework. The times in hours were: 1, 1.25, 1, 1.5, 1, 3.5, 1.25, 1.5, 1, 1, 1, 1.5, 1, 1.25, 1.75, 1.25,1. If Mr. Brown wants a clear view of how long the average student takes to complete homework, should he calculate the mean or median? Could the mode be used? Explain.


3a. What is the best graph to use to track changes over short and long periods of time?


3b. What is the best graph to use to compare parts to a whole?


3c. What is the best graph to use to compare different groups?


3d. What is the best graph to use to show data when people cannot read a chart?


4a. A purse contains four $5 bills, five $10 bills and three $20 bills. Two bills are selected without the first selection being replaced. Find probability of first selecting a $5 bill, then selecting a second $5 bill.


4b. If a dice is thrown twice, find the probability of getting two 5’s.


4c. Suppose you roll a six-sided die. Find the odds that you roll a number greater than four.


4d. Find the size sample space if you tossed 3 coins.


4e. If a dice is rolled once, what is the probability that it will show an even number?


4f. A bag contains 4 white counters, 6 black counters, and 1 green counter. What is the probability of drawing a white counter and a black counter?


4g. A deck of cards contains 52 cards, 13 from each suit. If a card is flipped over, what is the probability that it is a spade or that it is a face card (J, Q, K) of any suit?

FTCE 5-9 Test Prep

Documents

Transcript of FTCE 5-9 Test Prep