A restaurant owner randomly selected and recorded the value of meals enjoyed by 20 diners on a given day. The values of meals (in rand) were:
|
44
|
65
|
80
|
72
|
90
|
58
|
44
|
47
|
48
|
35
|
|
65
|
56
|
36
|
69
|
48
|
62
|
51
|
55
|
50
|
44
|
(a) Define the random variable and its data type.
(b) Compute the mean and standard deviation of the value of meals at the restaurant.
(c) What is the median value of a meal at the restaurant? Interpret its meaning.
(d) What meal value occurs most frequently?
(e) Which central location measure would you choose? Why?