Video solusi : Mr. Karyanto gave his class a spelling test of 15 maths words. The number each of the 40 students spelt correctly was:
11 8 12 9 5 6 8 9 13 6
11 9 4 9 7 7 6 5 6 12
7 5 8 7 15 7 9 7 14 5
10 6 10 5 12 11 12 6 13 9
a. What was the lowest score?
b. What was the highest score?
c. Organise the data into a frequency distribution table!
d. What was the most common score?
e. How many students spelt less than 10 words correctly?
f. How many students made only 3 mistakes or less?