All categories

2 years ago

50 points !!! Also marking brainliest Show all work for the brainliest answer

Mathematics

1 answer:

IceJOKER [234]2 years ago

3 0

Answer:

I am sorry I missed your slave and the not year old friend and the not year old friend and the not year old old man was born to the point where she spent a good thing for a woman and she had been working on a good thing for her and I am wondering if you could give her expenses for her family to go with the not

You might be interested in

Madison made the following table to record the height of each person in her family. If Madison and Jade lay end to end, how far

vitfil [10]

Answer:

10 ft

Step-by-step explanation:

To get their total reach, we add the two numbers.

5⅙

+4⅚

Add integers and fractions

5⅙

9⁶/₆

Convert the fraction to an integer

⁶/₆ = 1

Add the 1 to the 9

9 + 1 = 10 ft

If Madison and Jade lay end to end, they will they reach 10 ft.

6 0

3 years ago

A normally distributed random variable with mean 4.5 and standard deviation 7.6 is sampled to get two independent values, X1 and

mr Goodwill [35]

Answer:

Bias for the estimator = -0.56

Mean Square Error for the estimator = 6.6311

Step-by-step explanation:

Given - A normally distributed random variable with mean 4.5 and standard deviation 7.6 is sampled to get two independent values, X1 and X2. The mean is estimated using the formula (3X1 + 4X2)/8.

To find - Determine the bias and the mean squared error for this estimator of the mean.

Proof -

Let us denote

X be a random variable such that X ~ N(mean = 4.5, SD = 7.6)

Now,

An estimate of mean, μ is suggested as

$\mu = \frac{3X_{1} + 4X_{2} }{8}$

Now

Bias for the estimator = E(μ bar) - μ

= $E( \frac{3X_{1} + 4X_{2} }{8}) - 4.5$

= $\frac{3E(X_{1}) + 4E(X_{2})}{8} - 4.5$

= $\frac{3(4.5) + 4(4.5)}{8} - 4.5$

= $\frac{13.5 + 18}{8} - 4.5$

= $\frac{31.5}{8} - 4.5$

= 3.9375 - 4.5

= - 0.5625 ≈ -0.56

∴ we get

Bias for the estimator = -0.56

Now,

Mean Square Error for the estimator = E[(μ bar - μ)²]

= Var(μ bar) + [Bias(μ bar, μ)]²

= $Var( \frac{3X_{1} + 4X_{2} }{8}) + 0.3136$

= $\frac{1}{64} Var( {3X_{1} + 4X_{2} }) + 0.3136$

= $\frac{1}{64} ( [{3Var(X_{1}) + 4Var(X_{2})] }) + 0.3136$

= $\frac{1}{64} [{3(57.76) + 4(57.76)}] } + 0.3136$

= $\frac{1}{64} [7(57.76)}] } + 0.3136$

= $\frac{1}{64} [404.32] } + 0.3136$

= $6.3175 + 0.3136$

= 6.6311

∴ we get

Mean Square Error for the estimator = 6.6311

6 0

3 years ago

The number 6,492,000 when split into two number that when divided by 10 equal 6,492,000. what are the two numbers?

tamaranim1 [39]

If u use scientific notion the answer for the first one would be 10^8 the second one would be 10^11 and the last one would be 10^10
Hope that Helps >.< <span />

8 0

3 years ago

Katana has a shelf that is 5 feet long.She wants to paint a design along 7/10 of the shelf. How many feet of the shelf will kata

Brums [2.3K]

Answer:

3.5 or 3 1/2 feet of the shelf

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

The drama club is selling tickets to their play to raise money for the shows expenses. Each student ticket sells for $8 and each

vivado [14]

Answer:

32 adult tickets and 49 student tickets

Step-by-step explanation:

Step-by-step explanation: 32 x $11.50= $368 adult tickets 49 x $8=$392 student tickets

6 0

3 years ago