Question

27 randomly selected students were asked the number of movies they watched the previous week. The results are as follows: # of Movies 0 1 2 3 4 5 6 Frequency 5 2 2 3 7 3 5 Round all your answers to 4 decimal places where possible. The mean is: The median is: The sample standard deviation is: The first quartile is: The third quartile is: What percent of the respondents watched at least 6 movies the previous week? % 45% of all respondents watched fewer than how many movies the previous week?

Answer 1

# of Movies
Mean	3.259259259
Standard Error	0.408571246
Median	4
Mode	4
Standard Deviation	2.122998471
Sample Variance	4.507122507
Kurtosis	-1.153886533
Skewness	-0.341274818
Range	6
Minimum	0
Maximum	6
Sum	88
Count	27
Largest(1)	6

The mean is:

Mean

3.259

The median is:

Median

4

The sample standard deviation is:

Standard Deviation

2.122998471

The first quartile is:

1.500

The third quartile is:

5.000

What per cent of the respondents watched at least 6 movies the previous week? (5/27*100)=18.51852%

45% of all respondents watched fewer than how many movies the previous week?

> quantile(x, c(.45))
45%
3.7

45% of all respondents watched fewer than 3.7 movies the previous week.