Statistical Questions
It has several different varying answers.
What is the measure of variation; IQR and range? Give a well developed definition and give an example.
What is IQR- The range difference between the upper and lower quartile. Measures of Variation- a measure that describes the distribution to a data set. Range- Subtracting the upper quartile from the lower quartile.
20+40+80+90= 57.5 True or False Is this the Mean?
What is True. 20+40+80+90=230. 230/4=57.5
0 1 2 3 4 5 6 7 8 9 10 What is the Median?
What is 5
When should you use the mean and the range?
When there is NOT AN OUTLIER and the data is SYMMERTRICAL.
Mrs. Patruski's class voted on their favorite color. Is this a statistical question?
What is yes
What is the range of: 3,2,34,5,12,14?
What is 11
5,7,10,14,16,19 What is the range?
What is 14
5+6+3+2+8+9+5+5+2 What is the mode?
What is 5?
When there IS AN OUTLIER and when the data is SKEWED.
How many students in HMS in each homeroom have oval,circle, square, rectangle shaped glasses? Is this a statistical question?
What is yes
Is this the correct order? 8,12,1,9,3,5,2? Explain.
What is No, because it need to be in order from least to greatest.
Here are a students grades: 90,60,80,70,50 Find the average or mean of the numbers.
What is 70
5+6+3+2+8+9+5+5+2 What is the Median?
What is 5?
1+3+2++5+6+8+40+2+4+5+2+10+43 What is Q1,Q2,Q3 of the data set?
What is Q1=2 Q2=5 Q3=10
How many kids have Nike shoes? Is this a statistical question? Explain why?
What is No, there is no specific person or group your asking the question to. The answer to this question does not have a variability of answers.
What would be the interquartile range of 12 as the upper quartile and 5 as the lower quartile?
What is 7; 12 (Upper Quartile) - 5 (lower Quartile) = 7
30+50+80+210 What is the mean? Round to the tenths place.
What is 92.2
30+40+80+100+20+30+30 What is the median and the mode?
What is Median=30 Mode=30
With a box and whisker plot what do the whiskers symbolize?
What is THE LOWER 25% OF THE DATA AND THE UPPER 25% OF THE DATA
How many students in this class watched the Braves game last night? Is this a statistical question?
NO
Define upper and lower quartile.
What is Upper Quartile - the median of the upper half of the data set. Lower Quartile - the median of the lower half of the data
200+300+400+450+500 What is the mean?
What is 370
1+5+6++8+4+3+2+10+2+40+43+5 What is the median and the mode?
What is Median=5 mode=2 & 5
What is a lower extreme and an upper extreme?
What is lower extreme- smallest data piece upper extreme- biggest data piece