Please solve explaining steps and formula used Question 12
-15 16-20 21-25 26-30 31-35 36-40
Marks I —5 6 —10 1 1
6
15
17
19
12
Fre uenc
For the distribution in the table above, find the median, mode and the standard deviation of
the given data,
)uestion 13
1
1
then prove that: cos?A = sin 4B.
