Can someone help me with these 2 please :(
2 answers:
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Answer:
Step-by-step explanation:
its a
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Make a proportion.
Do base over height;
.
h is the height of the second triangle. Solve for h.
Cross multiply.
6h = 168
h = 28
The height of the second triangle is 28 cm.
Do base over height;
h is the height of the second triangle. Solve for h.
Cross multiply.
6h = 168
h = 28
The height of the second triangle is 28 cm.
Answer:
By the Chebyshev Theorem, at least 75% of commuters in Boston has a commute time within 2 standard deviations of the mean
Step-by-step explanation:
Chebyshev Theorem
The Chebyshev Theorem can also be applied to non-normal distribution. It states that:
At least 75% of the measures are within 2 standard deviations of the mean.
At least 89% of the measures are within 3 standard deviations of the mean.
An in general terms, the percentage of measures within k standard deviations of the mean is given by .
What minimum percentage of commuters in Boston has a commute time within 2 standard deviations of the mean
By the Chebyshev Theorem, at least 75% of commuters in Boston has a commute time within 2 standard deviations of the mean