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elixir [45]
3 years ago
8

Suppose a simple random sample of size n is obtained from a population whose distribution is skewed right. as the sample size nâ

increases, what happens to the shape of the distribution of the sampleâ mean?
Mathematics
1 answer:
Fiesta28 [93]3 years ago
4 0
Answer:
The distribution of the sampled means becomes normally distributed (bell shaped) as the sample size increases.

Explanation:
According to the Central Limit Theorem, if the mean values for increasing sample sizes are obtained, the distribution of sample means will be normally distributed, even if the individual samples do not have normal distributions.
Typically, sample sizes of 30 or greater are recommended.
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Tony invested $5,500 in a four-year CD that paid 4.8% interest, but later needed to withdraw $475 early. If the CD’s penalty for
OleMash [197]
Given:
principal: 5,500
term: 4 years
interest rate: 4.8% per annum
early wdl of 475

penalty is the 3 months interest of the amount withdrawn.

Interest = 475 * 4.8% * 3/12
Interest = 475 * 1.2%
interest = 5.7 is the amount of the penalty

7 0
3 years ago
Help mee please and thanks​
Vlad1618 [11]

Answer:

x= −1/5y + 2/5

Step-by-step explanation:

Let's solve for x.

y=−5x+2

Step 1: Flip the equation.

−5x+2=y

Step 2: Add -2 to both sides.

−5x+2+−2=y+−2

−5x=y−2

Step 3: Divide both sides by -5.

7 0
3 years ago
Read 2 more answers
PLEASE HELP ILL GIVE BRAINLIEST PLEASE PLEASE PLEEEEEEEAAAAASE
Nesterboy [21]

The recursive formula is  a_n= a_{n-1} -5.

<h3>What is Arithmetic Progression?</h3>

A set of numbers is an arithmetic progression (AP) or an arithmetic sequence such that the difference between successive words is unchanged.

Given:

A(n)=(-1)+(n-1)(-5)

A(n) = -1 - 5n + 5

A(n) = 4-5n

n=1

A(1)= 4-5= -1

n=2,

A(2) = -6

n=3

A(3)= -11

Hence, the recursive formula is a_n= a_{n-1} -5.

Learn more about this concept here:

brainly.com/question/20113523

#SPJ1

8 0
2 years ago
Saguaro cacti are large cacti indigenous to thesouthwestern United States and Mexico. Assume that thenumber of saguaro cacti in
pickupchik [31]

Answer:

Step-by-step explanation:

Given that Saguaro cacti are large cacti indigenous to thesouthwestern United States and Mexico. Assume that thenumber of saguaro cacti in a region follows a Poisson distribution with a mean of 280 per square kilometer.

a) Mean number of cacti per 10,000 square meters=280*10000 = 2800000

b) P(no cacti in 10000) sq m = P(X=0) for Poisson with parameter 2800000

= 0

(almost uncertain event)

c) Area of a region such that the probability of at least twocacti in the region is 0.9.

P(X\geq 2) =0.9\\

We get this is possible if mean = 8.4 for Poisson

i.e. region should have area as

\frac{8.4}{280} \\=0.03

4 0
3 years ago
Can Wendell make a triangular garden using pieces D, E, and F? Why or why not?
Mrac [35]

If the sides of the triangle are given. Then Wendell can make a triangular garden using pieces D, E, and F.

<h3>What is the construction of the triangle?</h3>

The process of making a triangle is known as the construction of the triangle.

Wendell makes a triangular garden using pieces D, E, and F.

Where D, E, and F may be a side of the triangle or angle of the triangle.

To make a triangle we need at least one side of the triangle.

If all the angles of the triangle is given then we can not make a triangle because the side of the triangle is unknown.

More about the construction of the triangle link is given below.

brainly.com/question/12990797

#SPJ1

6 0
2 years ago
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