What percentage does the third quartile represent?

2 answers:

6 0

The third quartile (also called the upper quartile) has 75 percent of the data below it and the top 25 percent of the data above it on a box and whisker plot! Hope this helps!

sveta [45]3 years ago

5 0

Since the data is split, the third quartile would represent 25% of the total data, but the top 75%. It depends what the problem is asking.

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Thelma Thrifty went to her bank. She had a balance of $1,209.76 in her savings account. She withdrew $131.44 and the teller cred

tangare [24]

The answer is B. $1,084.99
When a bank teller credits money into your account it adds money. And when you withdrawal money it takes it out. So you would set up the problem
$1,209.76-$131.44=$1,078.32
Then add the money credited into the account to that total.
$1,078.32+$6.67=$1,084.99

3 0

4 years ago

8. Which expression is greatest? Justify your answer.<br> a. 4 X -5<br> b. -5 + 4<br> c. -4- (-5)

vladimir1956 [14]

Answer:

Step-by-step explanation:

i think this is the greatest because if you solve all of the expressions you will find out that this is the greatest.

a.4×-5=-20

b.-5+4=-1

c.-4-(-5)=1

therefore 1 is the greatest so the expression c is the greatest.

I hope this helps

3 0

3 years ago

Read 2 more answers

A truck's varying distance from the warehouse, d , measured in miles is modeled by the formula d=t2+50t where t is the varying n

Dafna1 [17]

Answer:

7.596 hours
57.596 mph

Step-by-step explanation:

a) The distance is given as ...

d = t^2 +50t

We want to find the value of t for which this distance is 437.5 miles. That means we want to solve the equation ...

437.7 = t^2 +50t

We can complete the square by adding the square of half the t coefficient, (50/2)^2 = 625

437.5 +625 = t^2 +50t +625

1062.5 = (t +25)^2

√1062.5 -25 = t ≈ 7.596 . . . . hours

It will take the truck about 7.596 hours to reach its destination.

b) Average speed is total distance divided by total time. Here, we can find the average speed as ...

d/t = (t^2 +50t)/t = t +50

That is, the average speed over the 437.5-mile trip is ...

7.596 +50 = 57.596 . . . . miles per hour

The car must maintain a constant speed of 57.596 mph to reach the destination at the same time.

_____

When solving equations using a graphing calculator, I like to put them into a form such that the solution is the x-intercept. Here, that means the equation we're solving is ...

x^2 +50x -437.5 = 0 . . . . x is hours to destination