Can you please help me to answer the following:

Descriptive Statistics and z-scores

Find the mean, median, mode, range, variance, standard deviation and sum of each of the following set of scores:

Set 2 Scores Squared Scores

67

62

50

62

52

0

22

46

72

54

45

1

Sum = Sum of Squared x² =

N =

Mean:

Median:

Mode:

Range:

Variance:

Standard deviation:

1. Is this a normal distribution of scores? Explain

2. Show work to calculate Variance and Standard Deviation for the class dataset.