Key Statistics HW

Below are a list of bowling scores. Determine the mean (x-bar) and round to one decimal place:

111, 167, 138, 190, 185

Mathematical Equivalence

ON

Determine the median of this data set of high temperatures recorded so far in October:

78, 81, 88, 80, 79, 77, 78, 90, 91, 85, 86

Mathematical Equivalence

ON

The results of quiz scores from 6 students are listed below.

Calculate the median.

60, 70, 70, 80, 82, 100

Mathematical Equivalence

ON

Determine the 1st Quartile value from the data set below (complete this by hand and then use the calculator to check your work):

78, 81, 88, 80, 79, 77, 78, 90, 91, 85, 86

Mathematical Equivalence

ON

Determine the 3rd quartile value from the data set below (do this by hand first and then use the calculator to confirm your result).

78, 81, 88, 80, 79, 77, 78, 90, 91, 85, 86

Mathematical Equivalence

ON

Below are attendance rates for 7 high schools in East Tennessee. Determine the interquartile range from the data below:

88, 89, 93, 93, 94, 94, 95

Mathematical Equivalence

ON

Snowfall amounts (in inches) are listed below in Maryville City from the past 10 years:

3.1, 1.7, 7.2, 6.5, 2.4, 3.5, 9.1, 8.6, 1.1, 2.6

Determine the range.

Mathematical Equivalence

ON

A random sample of 10 Maryville high school students reveals data about their sleep in hours per school night:

4.5, 5, 8, 8.5, 7, 6, 6.5

Determine the standard deviation and round to one decimal place.

Mathematical Equivalence

ON

Determine the mode of the data set:

1.6, 7.2, 1.6, 3.1, 4.9, 5.0, 5.1, 3.2, 9.3, 7.8, 7.9

Mathematical Equivalence

ON

Pick all key statistical values that are impacted by extreme values:

​ (a)   ​ (b)   ​ (c)  

• standard deviation
• mean
• range
• median
• IQR
• Q3