Answer:16
Step-by-step explanation:
The triangle: 4*4/2=8
The square: 4²=16
16+8=24
, assuming they mean pre eat values.
2. 
Answer:
option C.
Step-by-step explanation:
The given graph is the bell shaped graph.
From the graph we can observe that the peak is at 69.
So, the mean of the data is = 69 .
Standard deviation is the deviation of the graph from the mean value.
= 72-69 = 3
Hence, the standard deviation is equal to 3.
So, the correct answer is option C.
