Question

note: consider the following credit load data for neumann university students who were enrolled during this past summer semester. please answer the following dozen questions about this data set: 7, 9, 6, 5, 9, 7, 8, 5, 10, 7, 8, 14, 3, 7, 15 #26 what is the mean of this data set? (a) 5 (b) 6 (c) 7 (d) 8 (e) none of these #27 what is the median of this data set? (a) 5 (b) 6 (c) 7 (d) 8 (e) none of these #28 what is the mode of this data set? (a) 5 (b) 6 (c) 7 (d) 8 (e) none of these

Explanation:

Step1: Calculate sum of data

$7 + 9+6 + 5+9 + 7+8 + 5+10 + 7+8 + 14+3 + 7+15=118$

Step2: Calculate number of data points

There are 15 data - points.

Step3: Calculate the mean

The mean $\bar{x}=\frac{118}{15}\approx7.87$.

Step1: Sort the data

$3,5,5,6,7,7,7,7,7,8,8,9,9,10,15$

Step2: Find the median

Since there are 15 data - points (an odd number), the median is the 8th value. The 8th value is 7.

Step1: Identify the mode

The mode is the number that appears most frequently in the data - set. The number 7 appears 5 times, which is more frequently than any other number.

Answer:

E. None of these