What is the valid sample size? Hint: do not include missing data. What are the variance and standard deviation. Hint if you only know the variance, how can you find the standard deviation?

FREQUENCIES FREQUENCIES /VARIABLES- BadGd /FORMAT-AVALUE TABLE /STATISTICS-MEAN VARIANCE MODE MEDIAN. Bad Good Value Label Value Frequency Percent Valid Percent Cum Percent 1.00 8.62 9.09 9.09 2.00 6.90 7-27 16.36 3.00 8.62 9.09 25-45 4.00 20.60 21.82 47-27 5.00 12.07 12.73 60.00 6.00 8 13-70 14.55 74-55 7.00 24.14 25-45 100.00 3 5.17 Missing Total 58 100.0 100.0 Bad Good Valid Missing Mean Mode Variance Percentles 50 Median