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3 years ago

Give at least five (5) examples of statistical and non-statistical questions.

Mathematics

1 answer:

Anit [1.1K]3 years ago

7 0

Answer (statistical):

1. How old are the students in this room?

2. What do 7th graders prefer to eat for lunch?

3. What time did the students in this class get up this morning?

4. What is the typical amount of pets owned by students in my class?

5. What were the high temperatures in all of the Latin American capitals today?

Answer (non-statistical):

1. What did Tom eat for lunch?

2. How old are you?

3. How many brothers does Marley have?

4. Did you get up on time today?

5. How many votes did the winning candidate for the Student Body receive this year?

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The price of oil decreased from $52 per barrel to $48 per barrel. What is the percentage decrease in the price of oil? Round you

zaharov [31]

Answer:

7.7%

Step-by-step explanation:

Given that,

The price of oil decreased from $52 per barrel to $48 per barrel.

We need to find the percentage decrease in the price of oil. It can be calculated as follows :

$\%=\dfrac{52-48}{52}\times 100\\\\=7.69\%$

= 7.7%

So, the percentage decrease in the price of oil is 7.7%.

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3 years ago

A 15-foot ladder is leaning against a 30-foot wall. The bottom end of the ladder is 9 feet from the wall. How many feet above th

lana [24]

The answer is 12 feet tall... look at pic

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3 years ago

Read 2 more answers

After a baseball is hit, the height h (in feet) of the ball above the ground t seconds after it is hit can be approximated by th

lubasha [3.4K]

Answer:

The ball will take 4.05 seconds to hit the ground.

Step-by-step explanation:

we have

$h=-16t^{2}+64t+3$

This is a quadratic equation (vertical parabola) open down

The vertex is a maximum

we know that

The ball hit the ground when h=0

Solve the quadratic equation

For h=0

$-16t^{2}+64t+3=0$

The formula to solve a quadratic equation of the form

$at^{2} +bt+c=0$ is equal to

$t=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$-16t^{2}+64t+3=0$

$a=-16\\b=64\\c=3$

substitute in the formula

$t=\frac{-64(+/-)\sqrt{64^{2}-4(-16)(3)}} {2(-16)}$

$t=\frac{-64(+/-)\sqrt{4,288}} {-32}$

$t=\frac{64(-)\sqrt{4,288}} {32}=-0.05\ sec$ ---> the time cannot be a negative number

$t=\frac{64(+)\sqrt{4,288}} {32}=4.05\ sec$

therefore

The ball will take 4.05 seconds to hit the ground.

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3 years ago

Q. Write the equation of the line.

8_murik_8 [283]

Answer: Y=mx+b

Step-by-step explanation:

M=slope

B= your y-coordinate

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2 years ago

45% of c is 90. <br> Find the value of c.

alisha [4.7K]

Answer:

200 = c

Step-by-step explanation:

100/45=2.2.

2.2x90= 200.

4 0

3 years ago