Answer:
0.0015 is he probability that a randomly selected student has a body weight of greater than 169 pounds.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 142 pounds
Standard Deviation, σ = 9 pounds
We are given that the distribution of body weights is a bell shaped distribution that is a normal distribution.
Empirical Rule:
- The empirical rule states that for a normal distribution 68% falls within the first standard deviation from the mean, 95% within the first two standard deviations from the mean and 99.7% within three standard deviations of the mean.
P( body weight of greater than 169 pounds)
According to empirical rule, 99.7% within three standard deviations of the mean.
Thus, we can write:
P( body weight of greater than 169 pounds)
0.0015 is he probability that a randomly selected student has a body weight of greater than 169 pounds.
Answer:
Bring home tomorrow
Step-by-step explanation:
Just bring it home tommorow your parents will understand u forgot
Answer:
Step-by-step explanation:
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Billy Bob’s farm is 80 m north of his house. The farms pond is 120 m west of the house. So the distance between the pond and the farm is 144.42 m.
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Solution:
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From question, given that billy bob’s farm is 80 m north of his house and pond is 120 m west of the house.
The given can be represented using the diagram given below:
where,
“a” indicates the distance between the house and the pond
“b” indicates the distance between the house and the farm
“c” indicates the distance between the farm and the pond.
For a right angled triangle, by Pythagoras theorem,
= 20800
Taking square root on both sides, we get
= 144.22 m
Hence the distance between the pond and farm is 144.22 m
Answer:
y = 4
Step-by-step explanation:
5/2y = 10
5/2y x 2/5 = 10 x 2/5
Multiply each side by the reciprocal
y = 4