Answer:
34% of lightbulb replacement requests numbering between 47 and 52
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 = 52
Standard deviation = 5
Between 47 and 52:
52 is the mean and 47 is one standard deviation below the mean.
By the Empirical Rule, 68% of the measures are within 1 standard deviation of the mean.
Since the normal distribution is symmetric, of those, 34% are within 1 standard deviation below the mean and the mean(47 and 52) and 34% are within the mean and one standard deviation above the mean(52 and 57).
So
34% of lightbulb replacement requests numbering between 47 and 52
32/7 once u solve the mixed fraction this is wht u get
Answer:
I think C
Step-by-step explanation:
Answer:
There are 240,000 acres of the state parkland in Mississippi.
Step-by-step explanation:
Let a= Mississippi's parkland acres
You can use either Distributive Property, or The Order of Operations.
Distributive Property:
(76,000+4,000) 3= a
228,000+12,000= a
240,000= a
Order of Operations:
(76,000+4,000) 3= a
(80,000) 3= a
240,000= a
:)
Answer:
x=-7
Step-by-step explanation:
so if you multiply two negative numbers you get a positive and and -7 * -3 is just doing 3*7 which is 21 and that is the answer to -3*-7 and 21 minus 5 is 16 so there´s that and hope this helps
