Answer:
Since the sum is same, the associative property of addition holds true. Therefore, it can be concluded that the grouping of numbers in any order does not change the sum. Example 6: Consider the algebraic expression, .
Step-by-step explanation:
not sure
Answer:
b
Step-by-step explanation:
use a protractor to mmeasure it
Answer:
16% probability that a randomly chosen U.S. adult sleeps more than 8.7 hours per night
Step-by-step explanation:
The Empirical Rule(Standard Deviation) 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 = 7.5
Standard deviation = 1.2
Using the Standard Deviation Rule, what is the probability that a randomly chosen U.S. adult sleeps more than 8.7 hours per night?
8.7 = 7.5 + 1.2
So 8.7 is one standard deviation above the mean.
By the Empirical Rule, 68% of the measures are within 1 standard deviation of the mean. The other 100-68 = 32% are more than one standard deviation from the mean. Since the normal probability distribution is symmetric, 16% are more than one standard deviation below the mean and 16% are more than one standard deviation above the mean(above 8.7 hours)
So, 16% probability that a randomly chosen U.S. adult sleeps more than 8.7 hours per night
Answer: There are 2 melons, 3 pears and 6 apples in each bowl.
Step-by-step explanation:
Since we have given that
Number of melons = 8
Number of pears = 12
Number of apples = 24
We need to find the number of pieces that Hana can put in each bowl.
For greatest number of pieces = H.C.F. of 8, 12, 24 =4
So, Number of pieces of melons = 
So, Number of pieces of pears = 
So, Number of pieces of apples = 
Hence, there are 2 melons, 3 pears and 6 apples in each bowl.
