QUARTILE ( MENDENHALL AND SINCICH METHOD)

The ___________ are the score-points which divide a distribution into

four equal parts.

• Quartiles

• Deciles

• Percentiles

• Fractions

Middle quartile is also called as __________.

• Third Quartile

• First Quartile

• Second Quartile

• Fourth Quartile

 What is the formula of  $Q_3$    

• 1/4 (𝒏 + 𝟏)

• 3/4 (𝒏 + 𝟏)

• 1/42(𝒏 + 𝟏)

• (𝒏 + 𝟏)/2

Speed is the rate at which an object covers distance. Here are the records of speed of different vehicles that passes through North Luzon Express Way (NLEX) in km/hr.                                       65, 65, 75, 80, 80, 84, 85, 90, 90.                       Find the first quartile ( $Q_1$ ).

• 65

• 75

• 80

• 84

Speed is the rate at which an object covers distance. Here are the records of speed of different vehicles that passes through North Luzon Express Way (NLEX) in km/hr.                                       65, 65, 75, 80, 80, 84, 85, 90, 90.                       Find the upper quartile ( $Q_3$ ).

• 84

• 80

• 85

• 64