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4 years ago

The first quartile of a data set is 52, and the third quartile is 72. which one of these values in the data set is an outlier?

2 answers:

7 0

72 - 52 = 20 <= thats ur IQR

IQR * 1.5 = 20 * 1.5 = 30

52 - 30 = 22...anything less then 22 is an outlier
72 + 30 = 102...anything above 102 is an outlier

answer is : C

elena55 [62]4 years ago

5 0

Answer: 21

Step-by-step explanation: Apex said so

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9. This piecewise function represents the Social Security taxes for 2009. How much did Rachel pay in Social

ANEK [815]

Answer:

Option c.

Step-by-step explanation:

It is given that the piecewise function represents the Social Security taxes for 2009.

$Tax=\begin{cases}0.062x & \text{ when } 0< x < 106,800 \\ \$6,621.60 & \text{ when } x > 106,800 \end{cases}$

We need to find Rachel's security tax if she earned $102,000 in 2009.

Since 102,000 lies in $0$ , therefore

$Tax=0.062x$

Put x=102000.

$Tax=0.062(102000)$

$Tax=6324$

So, the Social Security tax is $6324.

Therefore, the correct option is c.

5 0

4 years ago

Company earns S dollars by selling y items per week. According to the equation S(y)=−2y^2+60y+10, how many items does company ne

sp2606 [1]

Answer:

$Max = 15$

Step-by-step explanation:

Given

$s(y) = -2y^2 + 60y + 10$

Required

Determine number of items that gives maximum earnings;

The general form of a quadratic equation is:

$s(y) = ay^2 + by + c$

And the maximum is calculated as:

$Max = \frac{-b}{2a}$ If a<0

Comparing $s(y) = ay^2 + by + c$ to $s(y) = -2y^2 + 60y + 10$

We have that:

$a = -2$ $b = 60$ $c = 10$

Substitute these values to

$Max = \frac{-b}{2a}$

$Max = \frac{-60}{2 * -2}$

$Max = \frac{-60}{-4}$

$Max = 15$

The number of item that maximizes the function is when y = 15

7 0

3 years ago

7.5 liters of a certain solution contain 37 grams of salt. What is the density of salt in the solution? Round your answer, if ne

Stolb23 [73]

Answer:

4.9

Step-by-step explanation:

37/7.5

3 0

3 years ago

BRAINLIESTTTT!!!!

Tresset [83]

We have that
x² − 2x − 3 = 0

Step 1
isolate the variable terms
x² - 2x = 3

Step 2
complete the square
x² - 2x + 1² = 3 + 1² 
(x-1)² = 4

the answer is the option (x-1)² = 4

8 0

4 years ago

A number changed to 193 after it was rounded. To what place was the number rounded?

GREYUIT [131]

The number was rounded to the nearest one.
Are there any answer choices?

3 0

4 years ago