Answer:
20:9
Step-by-step explanation:
Answer:
a = 12
Step-by-step explanation:
Convert element into fraction : 3= 3/1
Cross multiply
Answer:
95%
Step-by-step explanation:
The empirical rule states that if data follows normal distribution then the percentage of observations falls within one, two and three standard deviation around the mean are
i) 68% falls within one standard deviation
ii) 95% falls within two standard deviation
iii) 99.7% falls within three standard deviation.
Hence 95% of the observations will fall within two standard deviations around the mean if the data follows normal distribution.
The answer is going to be 0.1775
I think it's the second answer
Hope this helps :)
