Review for First Periodical Test

What measure of central tendency is calculated by adding all the values and dividing the sum by the number of values?

• Mean                

• Median   

• Mode    

• Range

A teacher wants to know the typical test score in her class. The scores are: 75,80,82,78,85,90,75,83,79,81. Which measure of central tendency would best represent the 'typical' score if there are no extreme outliers?

                       

• Mean     

•  Median          

• Mode

• Range

A small restaurant records the number of customers served each hour: 5,12,10,8,7,12,6,9,12,11. Which measure of central tendency would best describe the most frequent number of customers served per hour?

                           

• Mean          

•    Median             

•   Mode                               

•     Range

Joe tracked their daily screen time for five days. The times, in hours, were: 2,3,5,4,3. What was the average daily screen time for these five days?

   

• 3 hours      

• 3.2 hours  

• 3.4 hours      

• 3.6 hours

The minimum jeepney fare is Php 13 for the first 4 kilometers and Php 3 increase for each subsequent kilometer. If you let x be the number of kilometers traveled beyond the first four
kilometer trip, what mathematical expression can you create to represent the jeepney fare?

• 3x - 13

• 3x + 13

• 13x - 3

• 13x + 3

Which of the following below are like terms?

         

• 3x, 5y, 4z

• 2a, 4a, 5b

• 5y, 7y,8y

• -2x, -2y,-2z

Which of the following is the product when 4a³b² is multiplied to 3a²b³?

• 7a³b²

• 7a⁵b⁵

• 12a³b²

• 12a⁵b⁵

What is the product of (x-1) (x+3) ?

• x² +2x -3

• x² -2x -3

• x² +4x -2

• x² +4x -3

Which special product pattern represents the square of a binomial (a+ b)²?

• a² - b²

• (a + b) (a - b)

• a² +2ab +b²

• a² -2ab +b²

What is the product of (x + 5) (x - 5)?

• x² -10x + 25

• x² + 10x + 25

• x² + 25

• x² - 25