Answer:
68% of the sample can be expected to fall between 28 and 32 cm
Step-by-step explanation:
The Empirical Rule states that, for a normally distributed random variable:
68% of the measures are within 1 standard deviation of the mean.
95% of the measures are within 2 standard deviation of the mean.
99.7% of the measures are within 3 standard deviations of the mean.
In this problem, we have that:
Mean = 30
Standard deviation = 2
What proportion of the sample can be expected to fall between 28 and 32 cm
28 = 30-2
28 is one standard deviation below the mean
32 = 30 + 2
32 is one standard deviation above the mean
By the Empirical Rule, 68% of the sample can be expected to fall between 28 and 32 cm
Answer:
$260
Step-by-step explanation:
620-100=520 ( to make both of them equal)
520÷2=$260
Hope this helps! Thanks.
Answer:
x=90 y=24
Step-by-step explanation:
I'm pretty sure if you're using slope this should be it.
The answer is 1.675 because when u subtract 3.6 from 1.925 it gives you 1.675
Its DBC, cause two is in that point so you just find the answer choice with those three letters in the right order.
