Statistics Quiz

Ervin bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the range of Ervin's scores?

• 193

• 127

• 60

• 66

The temperature in Michigan City on this date in the last ten years were: 68, 68, 69, 70, 72, 70, 68, 75, 55, 67. What is the mean temperature on this date over the last ten years? (Round to nearest whole number.)

• 60

• 61

• 68

• 70

Find the Inter-Quartile Range (IQR).

• 7609

• 8924.5

• 2708

• 5416

Which class has the higher median?

• 1st period

• 2nd period

• They have the same median

About 50 % of the data values are greater than what value?

• 12
• 15
• 22
• 31

Which of the following is true?

• 100% of the values are greater than 16

• 75% of the values are greater than 16

• 50% of the values are greater than 16

• 25% of the values are greater than 16

Which has a larger IQR?

• Zach
• Steven
• They have the same IQR

Which box-and-whisker plot represents these data?

• 
• 
• 
• 

Find the Quartile 1 of these numbers:

2, 3, 4, 5, 5, 5, 7,

• 4

• 6

• 3

• 5

What is the upper quartile (Q3) of the set of data:

2, 4, 6, 6, 7, 8, 10

• 2

• 6

• 4

• 8