Answer:
Mean: 30 students
Standard deviation: 5.2 students
Step-by-step explanation:
Khan
Diameter = 22 mm
Radius = diameter/2 = 22/2 = 11 mm
Area = pi r^2
Area = pi (11^2) = 380.133 mm^2
No option corresponds to the answer 380.133
If we round off 380.133 and 379.94 it then becomes 380. So answer D.
Answer:
9/25
Step-by-step explanation:
Number of Trials =50
<u>Outcomes Less than 4</u>
Frequency of 1=6
Frequency of 2=4
Frequency of 3=8
Total =6+4+8=18
Relative frequency for "roll a number less than 4" =18/50=9/25
