Can you show me how to get the correct answer what is the formula used Im going about this all wrong

Suppose the funnel experiment (described in class) was conducted 14 times with the following results (in sec):Midterm Marks3.15.33.06.66.06.94.27.36.05.95.33.87.06.2What percentage of outcomes that are less than or equal to 5 seconds?

[0,10)

[10,20)

[20,30)

[30,40)

[40,50)

[50,60)

[60,70)

[70,80)

[80,90)

[90,100]

What is the percentage of outcomes that are within 1 standard deviation of the mean?

[0,10)

[10,20)

[20,30)

[30,40)

[40,50)

[50,60)

[60,70)

[70,80)

[80,90)

[90,100]

Tries 0/3What is the percentage of outcomes that are within 2 standard deviations of the mean?

[0,10)

[10,20)

[20,30)

[30,40)

[40,50)

[50,60)

[60,70)

[70,80)

[80,90)

[90,100

Can you write it our for me Im not understanding which formula to use