What is the balance of Alicia’s account in 7 years?

What is an important difference between statistics andâ parameters?

Answer:

A characteristic , usually unknown of the population.

Characteristic of the population , such as its mean ,variance and standard deviations are population Parameters .

An observed characteristic of a sample are known as statistics

Estimate the use of a sample characteristic (statistic) to guess or approximate a population characteristic (parameter)

Step-by-step explanation:

Introduction:-

The outcome of a statistical experiment may be recorded either as a numerical value or as a descriptive representation.

Example:-1

When a pair of dice are tossed and the sum of the numbers on the faces is the outcome of interest, we record a numerical value.

Example :-2

If the students of a certain school are given blood tests and the type of blood is of interest, then a descriptive representation.

Population:-

Population is consists of the total observation's with which we are concerned

The number of observations in the population is defined to be the size of the population

Sample:- A sample is a subset of population.

Samples are classified in two ways

Large sample : if the size of the sample n≥ 30 is called the large sample.

small sample: if the size of the sample n<30 is called the small sample.

Statistics uses different names and symbols to distinguish characteristics

of the population from those of a sample.

Parameters :-

A characteristic , usually unknown of the population.

Characteristic of the population , such as its mean ,variance and standard deviations are population Parameters .

In symbolically mean of the population parameter is denoted by μ

In symbolically variance of the population parameter is denoted by σ²

In symbolically standard deviation of the population parameter is denoted by σ

Statistic :-

An observed characteristic of a sample are known as statistics

Estimate the use of a sample characteristic (statistic) to guess or approximate a population characteristic (parameter)

In symbolically mean of the sample statistic is denoted by x⁻

In symbolically variance of the sample statistic is denoted by S²

In symbolically standard deviation of the statistic is denoted by S

7 0

4 years ago

Can I please have some help

alukav5142 [94]

Step-by-step explanation:

14. e= -25

16. y=7

18. -k=500

20. w= -20

22. x=21

24. y=0

hope it helps.

5 0

3 years ago

Read 2 more answers

Bob has 40 feet of fencing to enclose a rectangular garden. If one side of the garden is x feet long, he wants the other side to

Alla [95]

One way to do this is to try the different option to replace x. Let's start with 8. Two sides of the rectangle would be 8.
8*2=16
Now you have to take 16 from 40 to see what's left.
40-16=24
2(20-8)=2(12)=24
That means 8 is an option to use, but you still need to see if any of the other options work to find the greatest area.
9*2=18.......40-18=22.......2(20-9)=2(11)=22
9 would also work.
10*2=20.......40-20=20.......2(20-10)=2(10)=20
10 would work
11*2=22.......40-22=18.......2(20-11)=2(9)=18
So all of them would work. Now you just need to find the largest area, which is length x width.
x(20-x)
8(20-8)=8(12)=96
9(20-9)=9(11)=99
10(20-10)=10(10)=100
11(20-11)=11(9)=99
So if x is 10, It would make the largest area.

(Sorry for all the extra work. I never trust that all the answers would work for the perimeter)

8 0

4 years ago

Read 2 more answers

Two sides of a triangle are 18 and 11. Find the range of possible values for the third side.

LekaFEV [45]

A^2+b^2=c^2
11^2+18^2=c^2
121+324=c^2
445=c^2
c=22

3 0

3 years ago

WHAT IS THE AREA OF THE CURVED SURFACE OF A CYLINDER OF BASE RADIUS 4 CM AND HEIGHT 10 CM

Alex

Answer:

Total surface area of cylinder is 532cm^2