4.1

NUC UNIVERSITY

Instructions: Reviewing the material discussed in class and making use of the class module, answer the following problems, remember to present how you arrive at the results, each exercise has an assigned value.

1., Find quartiles one, two and three and the interquartile difference of the following numbers (9 pts):

9, 5, 3, 10, 14, 6, 12, 7, 14

Q1 = Q3 = Q3- Q1 =

2.Find the D. Mean (20)

Suppose the number of coffees sold at the Orange County Airport Ginobuck's location between four and seven in the afternoon of a 5-day sample last year was 20, 40, 50, 60, and 80. At the Arizona airport , the number of coffees sold at the Ginobuck's location between four and seven at night in a 5-day sample last year was 20, 49, 50, 51, and 80. Find the mean, median, range, and mean deviation of each location and compare the differences.

3.Find: Q1, Q3 and QD (value 9 pts.)

IC FRECUENCY ACUMULATIVEFRECUENCY

30-34 3

35-39 7

40-44 5

45-49 14

50-54 6

55-59 2

60-64 1

4. Value: 12 pts -Find the variance and standard deviation in pooled data:

IC FRECUENCY MP

8 32

12 37

15 42

25 47

10 52

9 57

4 62