12.Last year, the average math SAT score for students at one school was 475. The headmaster then introduced a new teaching method hoping to improve scores. This year, the mean math SAT score for a sample of students was 491. The headmaster concluded that the new teaching method produces higher SAT scores. What is the problem with reporting results this way?

correlation and causality

voluntary response

missing data

loaded question

Answers

Answer 1

Answer:

Last year, the average math SAT score for students at one school was 475. The headmaster then introduced a new teaching method hoping to improve scores. This year, the mean math SAT score for a sample of students was 491. The headmaster concluded that the new teaching method produces higher SAT scores. The problem with reporting results this way is voluntary response. The information of how the teaching method isnot mentioned.

Answer 2

Answer:

Answer: voluntary response

I just took the test and got it right

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Convert: 16 square kilometers to acres

Answers

16 square kilometers is 3953.6861 acres.

Lita jogged 2 2/3 miles more on Wednesday than she did on Tuesday. She jogged 4 1/2 miles on Wednesday. Write and solve an equation to find how many miles she jogged on tuesday

Answers

Answer:

T = W - 8/3 .....1

T = 11/6 miles

T = 1 5/6 miles

Step-by-step explanation:

Let T and W represent the number of miles Lita jogged on Tuesday and Wednesday respectively.

From the question;

Lita jogged 2 2/3 miles more on Wednesday than she did on Tuesday

W = T + 2 2/3

T = W - 2 2/3

T = W - 8/3 .....1

She jogged 4 1/2 miles on Wednesday;

W = 4 1/2

W = 9/2

Substituting the value of W into equation 1;

T = 9/2 - 8/3

T = 11/6 miles

Help please!!To solve the problem tan^-1(cos(pi/2)) find the angle in the interval [-pi/2, pi,2] whose tangent equals 0.

Answers

The cosine of pi/2 is 0 so the problem really says "find the angle between - pi/2 and pi/2 whose tan = 0. That would be the same as asking for the angle whose sin is 0. That would be 0.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

Answer:

The angle is 0°.

Step-by-step explanation:

Consider the provided trigonometric function.

$tan^(-1)(cos(\pi)/(2))$

The given interval $[(-\pi)/(2), (\pi)/(2)]$

The value of $cos(\pi)/(2)=0$

Now substitute the respective value in the provided trigonometric function.

$tan^(-1)(tan(0))=0$ by inverse property of trigonometric function

Hence, the angle is 0°.

Zakary ate 34 hot dogs. jerald ate 30 times as much as zakary did. how many hot dogs did jerald eat?

Answers

1020 hotdogs. Just multiply the two

On a school field trip, the bus travels 16 miles in 30 minutes. Find the speed of the bus in miles per hour. Use the equation dequals=rt, where d is distance, r is rate, and t is time.

Answers

If it travels 16 miles in 30 minutes, double that its 32 miles in 60 minutes.

Distance = 16 miles
Time Traveled=30 minutes
30min x 2= 1hr
16 x2= 32
32 miles per hour

What is rounding 985,538,.86 to the nearest million?

Answers

is 1,000,000 because 538 is greater then 500 so it rounds up

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