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Based on the data, select the most reasonable prediction about the height ofsecond-grade students.A. The typical second-grade student is less than 45 inches tall.B. The typical second-grade student is about 45 inches tall.C. The typical second-grade student is more than 50 inches tall.D. The typical second-grade student is about 48 inches tall.
Based on the data, select the most reasonable prediction about - 1

Answers

Answer 1
Answer:

second-gradeWe are given the following data set:

44,45,47,49,48,48,49,50,48,52

We can calculate the mean of this data set, by adding all the terms and dividing by the number of terms, that is 10:

\text{mean}=(44+45+47+49+48+48+49+50+48+52)/(10)=(480)/(10)=48

Since the mean is 48 this means that the typical second grade student is 48 inches tall. the right answer would be D.

Related Questions

An animal shelter spends $2.00 per day to care for each bird and $6.00 per day to care for each cat. Maya noticed that the shelter spent $70.00 caring for birds and cats on Thursday. Maya found a record showing that there were a total of 27 birds and cats on Thursday. How many birds were at the shelter on Thursday ?
Assume a significance level ofα=0.05and use the given information to complete parts​ (a) and​ (b) below.Original​ claim:LessLessthan51​%of adults would erase all of their personal information online if they could. The hypothesis test results in a​ P-value of0.0148a. State a conclusion about the null hypothesis.​ (RejectUpper H 0H0or fail to rejectUpper H 0H0​.)Choose the correct answer below.A.RejectRejectUpper H 0H0because the​ P-value isless than or equal toless than or equal toalphaα.B.RejectRejectUpper H 0H0because the​ P-value isgreater thangreater thanalphaα.C.Fail to rejectFail to rejectUpper H 0H0because the​ P-value isgreater thangreater thanalphaα.D.Fail to rejectFail to rejectUpper H 0H0because the​ P-value isless than or equal toless than or equal toalphaα.b. Without using technical​ terms, state a final conclusion that addresses the original claim. Which of the following is the correct​ conclusion?A.The percentage of adults that would erase all of their personal information online if they could islesslessthan or equal to51​%.B.Thereisissufficient evidence to support the claim that the percentage of adults that would erase all of their personal information online if they could ismoremorethan51​%.C.The percentage of adults that would erase all of their personal information online if they could ismoremorethan51​%.D.Thereis notis notsufficient evidence to support the claim that the percentage of adults that would erase all of their personal information online if they could ismoremorethan51​%.
Zoe walks 4 kilometers and 600 meters, Elijah runs 3 times as far as Zoe walks. Anthony rides his bike 700 meters farthwr than Elijah runs, how far does Anthony ride in meters?
A triangle with vertices (-2,3), (5,4), and (-1,-1) is translated using the rule (x,y) (x-3, y+4) what are the coordinates of the image?
You go to school in a college town. You know that there are 2000 students enrolled in the school, but you don’t know the population of the town (without students). You walk up and down the main streets of the town, stop people, and ask them if they are students or not. You ask 100 people, and 60 of them say they are students. Estimate the nonstudent population of the town.

the letters for the words lake Okeechobee are placed in a jar. What is the probability a vowel is chosen

Answers

There are  6 vowels out of 10 letters in this word so
Prob( a vowel is chosen)  = 6/10  or 3/5  answer

uppose a small cannonball weighing 16 pounds is shot vertically upward, with an initial velocity v0 = 290 ft/s. The answer to the question "How high does the cannonball go?" depends on whether we take air resistance into account. If air resistance is ignored and the positive direction is upward, then a model for the state of the cannonball is given by d2s/dt2 = −g (equation (12) of Section 1.3). Since ds/dt = v(t) the last differential equation is the same as dv/dt = −g, where we take g = 32 ft/s2. If air resistance is incorporated into the model, it stands to reason that the maximum height attained by the cannonball must be less than if air resistance is ignored. (a) Assume air resistance is proportional to instantaneous velocity. If the positive direction is upward, a model for the state of the cannonball is given by m dv dt = −mg − kv, where m is the mass of the cannonball and k > 0 is a constant of proportionality. Suppose k = 0.0025 and find the velocity v(t) of the cannonball at time t.

Answers

Answer:

Given in the explanation

Step-by-step explanation:

Given

w = 16 pounds

v₀ = 290 ft/s

g = 32 ft/s²

k = 0.0025 (Kg/s)

m(dv)/(dt)= -mg - kv^(2)

Solving the differential equation we obtain

v(t)=((1)/(0.0125))*tan((-2*(t+C_(1) )/(5) )

If  v(0) = 290 ft/s, we have

290=((1)/(0.0125))*tan((-2*(0+C_(1) )/(5) )

⇒  C₁ = -3.254

Finally, we have

v(t)=((1)/(0.0125))*tan((-2*(t-3.254 )/(5) )

Please help someone

Answers

Answer:

1. Y

2. N

3. N

4. N

Step-by-step explanation:

Let's use the second equation, since it seems to be easier to use.

To check if an ordered pair is a solution, plug it in to the equation.

1. -10+18=8 --> Y

2. 25-12=13 --> N

3. 0-9=-9 --> N

4. 35-27=8 --> N

Edit : The 4th equation doesn't work for the first equation, whereas the first one still does.

Answer:

(-2,-6)

Step-by-step explanation:

-9x +2y = 6

5x - 3y = 8

1) Make one of the coefficients the same - y.

-9x +2y = 6 * 3

5x - 3y = 8 * 3

-27x +6y = 18

10x - 6y = 16

2) Add the new equations.

(-27x +6y = 18) + (10x - 6y = 16)

(-27x +6y) + (10x - 6y) = 18 + 16

-17x = 34

3) Divide to find the value of x

-17x = 34

x = 34/-17

x = -2

4) Substitute x into either equation to find the value of y.

-9(-2) +2y = 6

18 +2y = 6

2y = -12

y = -12/2

y = -6

5(-2) - 3y = 8

-10 - 3y = 8

-3y = 18

y = 18/-3

y = -6

Your answer is (-2,-6).

What are the advantages of a closed​ question? A. Closed questions allow the respondent to go​ in-depth with their answers. B. It is possible to automate the collection of results for closed questions. C. Closed questions allow for new solutions to be introduced. D. It is easy to quantify and compare the results of surveys with closed questions.

Answers

Answer:

closed questions are questions with fixed answer options

A. Closed questions allow the respondent to go​ in-depth with their answers.

  • no, it is relevant to open questions

B. It is possible to automate the collection of results for closed questions.

  • yes

C. Closed questions allow for new solutions to be introduced.

  • no, it allows to collect statistical data but not good for new solutions, it better works with open questions when new ideas, solutions may appear

D. It is easy to quantify and compare the results of surveys with closed questions.

  • yes

I have an exam for science edexcel pls help what should i revise its physics help plslslslslsl​

Answers

~First, which topics that you very weak, revise it

~Don't read in sentence form , read in I-Think form

~Don't feel nervous and just be like normal

Hope it helps!! Good luck for your exam❤️

Difference between the twice of a number and 50 is 85

Answers

Step-by-step explanation:
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