Answer:
About 99.7% of births would be expected to occur within 51 days of the mean pregnancy length
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:
Standard deviation = 17.
About what percentage of births would be expected to occur within 51 days of the mean pregnancy length?
51/17 = 3.
So, within 3 standard deviations of the mean.
About 99.7% of births would be expected to occur within 51 days of the mean pregnancy length
No the gardens are not going to be the same because Jamal' s garden is bigger than marks garden
To solve the problem related to mean solar time where it varies continuously as a traveler's longitude changes, scientists divided the earth into 24 time zones (adding other partial zones to it). All the countries in each time zones had to keep the mean standard time assigned to it.
<h3>What is Mean Standard Time?</h3>
This is the time that is measured by synchronizing clocks in different geographical locations within the same time zone to the same time.
See the link below for more about Mean Solar Time:
brainly.com/question/26063957
Answer:
128
Step-by-step explanation:
Set this up as a proportion with miles on the top and km on the bottom:
If we want to know how many km are in 80 miles, we put the variable with the km stuff on the bottom and 80 on top and cross multiply to solve for the variable:
so
5x = 640 and
x = 128
That means that 80 miles is equivalent to 128 km
-2(1/4x+2) >= 5
-0.5x-4 >= 5
-0.5x >= 9
x >= -18
