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Alenkinab [10]
3 years ago
15

Describe all the numbers that when rounded to the nearest thousand are 645,000​

Mathematics
1 answer:
andrezito [222]3 years ago
8 0

Answer: 10  including 645,000

Step-by-step explanation:

644,995

644,996

664,997

664,998

664,999

665,000

665,001

665,002

665,003

665,004

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Find the area of the shape shown below.
vovangra [49]

Answer:

I believe a=22

Step-by-step explanation:

a=4+4+4+2+8

a=8+4+2+8

a=12+2+8

a=14+8

a=22

8 0
2 years ago
A lake contains 4 distinct types of fish. Suppose that each fish caught is equally likely to be any one of these types. Let Y de
gregori [183]

a= μ-3.16*σ , b= μ+3.16*σ if each fish caught is equally likely to be any one of these 4 distinct types.

<h3>What is meant by Chebyshev inequality?</h3>

Chebyshev's inequality is a probability theory that ensures that, over a vast range of probability distributions, no more than a particular proportion of values would be present within a selected limits or range as from mean. In other words, only a certain fish caught will be discovered within a given range of the distribution's mean.

The formula for which no more than a particular number of values can exceed is 1/K2; in other words, 1/K2 of a distribution's values can be more than or equal to K standard deviations away from the distribution's mean. Furthermore, it asserts that 1-(1/K2) of a distribution's values must be within, but not include, K standard deviations of the distribution's mean.

How to solve?

from Chebyshev's inequality for Y

P(| Y - μ|≤ k*σ ) ≥ 1-1/k²

where

Y =  the number of fish that need be caught to obtain at least one of each type

μ = expected value of Y

σ = standard deviation of Y

P(| Y - μ|≤ k*σ ) = probability that Y is within k standard deviations from the mean

k= parameter

thus for

P(| Y - μ|≤ k*σ ) ≥ 1-1/k²

P{a≤Y≤b} ≥ 0.90 →  1-1/k² = 0.90 → k = 3.16

then

P(μ-k*σ≤ Y ≤ μ+k*σ ) ≥ 0.90

using one-sided Chebyshev inequality (Cantelli's inequality)

P(Y- μ≥ λ) ≥ 1- σ²/(σ²+λ²)

P{Y≥b} ≥ 0.90  →  1- σ²/(σ²+λ²)=  1- 1/(1+(λ/σ)²)=0.90 → 3= λ/σ → λ= 3*σ

then for

P(Y≥ μ+3*σ ) ≥ 0.90

In order to learn more about Chebyshev inequality, visit:

brainly.com/question/24971067

#SPJ4

4 0
1 year ago
The heights of some students are given 158cm 171cm 164cm 164cm 167cm 159cm what is the range of the heights?
bogdanovich [222]

Answer:

The range of students is 13.

Step-by-step explanation:

Take the largest number and subtract it from the smallest number. For example, 171 - 158 = 13 cm.

8 0
3 years ago
Use the identity x^3+y^3+z^3−3xyz=(x+y+z)(x^2+y^2+z^2−xy−yz−zx) to determine the value of the sum of three integers given:
RoseWind [281]

Inserting all the given information into the identity, we have

684-3(210)=(x+y+z)(110-107)\implies x+y+z=18

4 0
3 years ago
Graph a line with a y-intercept of -3 and a slope of 43 .
nasty-shy [4]

Answer: HERE IS THE GRAPH AND PLS CORRECT ME IF I"M WRONG :)

Step-by-step explanation:

8 0
3 years ago
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