please help me. I don't understand.

The statements that are true are:

- Another random sample of 20 students is likely to have a mean between 57 and 65 inches

- Elena would be more likely to get an accurate estimate of the mean height of the population by sampling 40 people instead of sampling 20 people.

Options B and E are the correct answer.

It is the average value of the set given.

It is calculated as:

Mean = Sum of all the values of the set given / Number of values in the set

We have,

a.

The median height of the sample must be between 59 and 63 inches.

This statement cannot be determined based on the given information.

The MAD provides information about the variability of the data, but not necessarily about the location of the median.

b.

Another random sample of 20 students is likely to have a mean between 57 and 65 inches.

This statement is likely to be true.

Since the sample mean is 62 inches and the MAD is 2 inches, it is reasonable to expect that another random sample of the same size would have a similar mean, within a few inches.

c.

The mean height of these 20 students is likely to be the same as the mean height of all students in the district.

This statement is uncertain.

The sample mean can be a good estimate of the population mean if the sample is representative, but we cannot be certain without more information about the sampling method.

d.

The mean height of these 20 students is likely to be the same as the mean height of a second random sample of 20 students.

This statement is uncertain.

The mean of a second random sample of the same size could be different due to random sampling variation.

e.

Elena would be more likely to get an accurate estimate of the mean height of the population by sampling 40 people instead of sampling 20 people.

This statement is likely to be true.

Generally, larger sample sizes tend to provide more accurate estimates of population parameters, as they are less affected by random sampling variation.

Thus,

The statements that are true are:

- Another random sample of 20 students is likely to have a mean between 57 and 65 inches

- Elena would be more likely to get an accurate estimate of the mean height of the population by sampling 40 people instead of sampling 20 people.

Learn more about mean here:

https://brainly.com/question/23263573

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Answer:

its a bit hard sorry i cant answer

Step-by-step explanation:

Answer: The radius equals 8cm

Answer:

8

Step-by-step explanation:

The circumference of a circle is equal to  π , which is a number  ≈ 3.14 , multiplied by the diameter of the circle.

Therefore,  C  =  π d .

We know that the circumference,  C , is  16 π , so we can say that:

16 π  =  π d

We can divide both sides by  π  to see that  16  =  d .

We now know that the diameter of the circle is  16 .

We also know that the diameter has twice the length of the radius.

In equation form:  2 r  =  d

2 r  =  16

r  =  8

Note that since  2 r  =  d , the equation  C  =  2 π r  holds and can be used in place of C  =  π d .

Answer:

Step-by-step explanation:

1/5x + 13= x- 107

15ft squared      

it is about 3 times the amount of carrots

Answer:

x = 128

Step-by-step explanation:

The angles are across form each other, meaning that they are the same angle. I hope this explains it enough, if not I can add more.

Answer:

37/8= 4 and 5/8

Step-by-step explanation:

21/4=42/8

42-5=37

42/8-5/8= 37/8

Answer:

37/8

Step-by-step explanation:

Answer:C

Step-by-step explanations:

because its acute duhhh

Answer:

84 = L x w

84 = 84 x 1

84 = 42 x 2

84 = 28 x 3

84 = 21 x 4

84 = 14 x 6

84 = 12 x 7

Step-by-step explanation:

Answer: Thx it feels good for people to encourage us.

Step-by-step explanation:

Answer:

The first one

Step-by-step explanation:

... It just is the right one

Step-by-step explanation:

you'd prefer 60% off because 60% is more than half off (half off is only 50% off)

Answer:

look in the previous lesson or assignment and do a screen shot of the problem. you gave us instructions on how to do the problem but didn't show us the problem itself.

Step-by-step explanation:

i hope this made more sense to you :)

Answer:

-5.33333333333

decimal

5  1/3

Answer:

3 mi = 5280 yd./ 24 in = 2 ft./ 26 yd = 936 in

Step-by-step explanation:

Answer:

She will have 19 ¹/₂ batches of purple paint

Step-by-step explanation:

r + b = 1 bp

³/₄ r + ³/₄ b = 1 bp

(³/₄ + ³/₄) * 13 = x bp

⁶/₄ = 1 ¹/₂

1 ¹/₂ * 13 = 13 ¹³/₂ = 19 ¹/₂ batches

VARIABLE KEY:

r = red

b = blue

bp = batches of purple

x = total number of bp

Good luck!!

Answer:

$30.50

Step-by-step explanation:

b = bagels

c = cream cheese

Given

b = 30

c = 2

Work:

0.85b+2.5c

0.85(30) + 2.5(2)

25.5 + 5

30.5

Answer:

basketball

Step-by-step explanation:

bc the dots are more spread out :)

Answer:

10. {5/8, 0.7, 0.755}

11. {-3.12, -3, 1 1/2}

12. {-2.98, -2 9/10, 2.88}

13. {4/5, 0.82, 5/6}

14. {-1 2/5, -1.20, -1.02}

15. {2 5/10, 2 3/5, 2.7}

10. {5/8, 0.7, 0.755}

11. {-3.12, -3, 1 1/2}

12. {-2.98, -2 9/10, 2.88}

13. {4/5, 0.82, 5/6}

14. {-1 2/5, -1.20, -1.02}

15. {2 5/10, 2 3/5, 2.7}

Answer:

Step-by-step explanation:

Answer:

Pythagoras Theorem

Step-by-step explanation:

[tex]a^{2} +b^{2}=c^{2}[/tex]

[tex]6^{2}+ 13^{2}= c^{2}[/tex]

[tex]205=c^{2}[/tex]

[tex]\sqrt{205} = c[/tex]

[tex]14.32 = c[/tex]