A group of wine enthusiasts taste-tested a pinot noir wine from Oregon. The evaluation was to grade the wine on a 0 to 100 point scale. The results follow:

(a) Construct a stem-and-leaf diagram for this data and comment on any important features that you notice.
(b) Compute the sample mean, sample standard deviation, and the sample median.
(c) A wine rated above 90 is considered truly exceptional. What proportion of the taste-tasters considered this particular pinot noir truly exceptional?

Transcribed Image Text:

90 92 87 90 91 94 93 95 91 91 86 89 91 90 16 89 90 89 92 89 87 90 86 92 88 91 85 88 92 89 95 90 85 83 91 89 88 84 85 90 ३ ৪ ৪ ৪