Answer:
x > -2
Step-by-step explanation:
M A T H W A Y
75% of n is 375.
Step-by-step explanation:
Given,
45% of a number n = 225
We will find n first.
Dividing both sides by 0.45
Now we have to find 75% of n.
75% of n =
75% of n = 375
75% of n is 375.
Keywords: percentage, division
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Answer:
by pyth the
side^2 = 61^2-60^2
side^2 = 121
side = 11
Step-by-step explanation:
Please mark me as brainlyest
(a) No doubt your textbook tells you that for a uniform distribution on the interval [a, b]:
.. mean = (a+b)/2 = (2.5 +30)/2 = 16.25
.. variance = (b -a)^2/12 = 27.5^2/12 = 63 1/48
(b) Likewise, from your text
.. p(x) = (x-a)/(b-a) = (x -2.5)/27.5
.. cdf(x) = p(x)^2 = (x -2.5)^2/756.25 . . . cumulative distribution function
(c) cdf(15) ≈ 0.2066 . . . . . . . . . . . probability of being 15 or less
.. cdf(20) -cdf(15) ≈ 0.1983 . . . . . probability of being between 15 and 20
(d) cdf(μ+σ) -cdf(μ-σ) ≈ 0.5774 . . . probability of being withing 1σ of the mean
.. cdf(μ+2σ) -cdf(μ-2σ) = 1 . . . . . . . the entire distribution is within 2σ of the mean