percent of the observations lie within plus and minus 2.5 standard deviations of the mean is 84%
according to Chebyshev's theorem k=2.5
Chebyshev theorem:
The minimum percentage of observations that are within a given range of standard deviations from the mean is calculated using Chebyshev's Theorem. Numerous other probability distributions can be applied with this theorem. Chebyshev's Inequality is another name for Chebyshev's Theorem.
This indicates that 1 - of the distribution will be close to the mean, or within k standard deviations.
Therefore, 1 -
⇒ 1-
⇒1-
⇒
⇒0.84
percent of the observations lie within plus and minus 2.5 standard deviations of the mean is 84%
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Answer:
c
Step-by-step explanation:
Any ride takes $2.00 and one mile takes $0.20.
Cost = $0.20 + $2.00
Cost = $2.20
<span>The
number of bacteria, b:
b(t) = 15t^2 − 60t + 125,
temperature, t:
t(h) = 3h + 4
Find the number
of bacteria in the food in h hours
=> you need to find b as a function of h, i.e. b(h) = b[t(h)]
b [t (h)]= 15 [t(h) ]^2 - 60 [t(h)] + 125
b(h) = 15 [ 3h + 4}^2 - 60 [3h + 4] + 125
b(h) = 15[9h^2 + 24h + 16] - 180h - 240 + 125
b(h) = 135h^2 + 360h + 240 - 180h + 125
b(h) = 135h^2 + 180h + 365 <---------- answer
</span>
I think the answer is 1/8 but I’m not 100% positive
Answer:
B)140
Step-by-step explanation:
So a line is=180 and the interior angles of a triangle= 180, so I did some manipulations
1. 100 + (5x+5) + <ECD = 180. But we also know that (21x-7) + <ECD=180. With some manipulation we can find that <ECD= 180 - (21x-7), so we can plug that into the other equation
2. Now: 100 + (5x+5) + (180- (21x-7))= 180
3. Solve:
105+5x+180-21x+7=180
112-16x=0
112=16x
x=7
4. Plug x=7 into 21x-7= 140