Connor Randall
2022-01-28
Answered

How do I calculate the variance and standard deviation of 102, 104, 106, 108, 110?

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asked 2021-02-21

We wish to estimate what percent of adult residents in a certain county are parents. Out of 600 adult residents sampled, 192 had kids. Based on this, plot a

Express your answer in the form of three inequalities. Give your answers in decimal fractions up to three places

asked 2021-03-18

A population of values has a normal distribution with

Find the probability that a single randomly selected value is between 133.6 and 134.1.

Write your answers as numbers accurate to 4 decimal places.

asked 2021-11-09

The random variables X and Y have joint density function

f(x,y)=12xy(1-x) 0<x<1,0<y<1

and equal to 0 otherwise.

Find Var(Y).

f(x,y)=12xy(1-x) 0<x<1,0<y<1

and equal to 0 otherwise.

Find Var(Y).

asked 2022-06-16

Toss 3 coin and 2 die find the probability of appearing 3 heads and sum of a dot = 12

asked 2021-11-10

The random variables X and Y have joint density function

f(x,y)=12xy(1-x) 0<x<1,0<y<1

and equal to 0 otherwise.

Are X and Y independent?

f(x,y)=12xy(1-x) 0<x<1,0<y<1

and equal to 0 otherwise.

Are X and Y independent?

asked 2022-01-16

What does the term expected value mean?

asked 2021-01-31

For a population with a mean of $\mu =100$ and a standard deviation of $\sigma =20$ ,

Find the X values.

$z=-.50$ .

Find the X values.