Mathematics
29.03.2020 14:34
178
408
8
Smartpotato9555
4,4(93 marks)
60
Step-by-step explanation:
60+60+y=180 (angle sum property )
120+y=180
y=180-120
y=60
nallwly
4,9(84 marks)
Solution:
Given problem is to find standard deviation,
Standard deviation is the square root of the variance
= sqrt(27)
= 5.19
Now rounding to the nearest tenth is 10,
Given problem is to find standard deviation,
Standard deviation is the square root of the variance
= sqrt(27)
= 5.19
Now rounding to the nearest tenth is 10,
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