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3 years ago

Find the z score that corresponds to P67, the 67th percentile of a standard normal distribution curve

Mathematics

2 answers:

gregori [183]3 years ago

8 0

Answer:

C. 0.44

Step-by-step explanation:

We must use a z-table to find this information. There are several free on the internet.

Once you get a table, find the value 0.6700 in the table. Using the row and column this entry is in we get the z-score. It is in the row for 0.4, and in the table for 0.04. This makes it 0.44.

yulyashka [42]3 years ago

6 0

From the z-table and at p67 or 0.67 (the decimal values in the table),

Z =0.44

See the attached photo (at the point where 0.6700 appears)

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While at a picnic, 42 adults drank iced tea, 24 adults drank bottled water, and 36 adults drank lemonade. What's the ratio, as a

alexira [117]

42 drank iced tea

60 drank either water or lemonade

So the ratio would be 42:60 or 7/10 as a fraction.

So D is the correct answer

3 0

3 years ago

Read 2 more answers

The square of the sum of two consecutive positive even integers is 4048 more than the sum of the squares of these two numbers. F

Burka [1]

Answer:

The numbers are 44 and 46

Step-by-step explanation:

Let

x, x+2 ----> the two consecutive positive even integers

we know that

$(x+x+2)^{2} =4,048+x^{2} +(x+2)^{2} \\ \\(2x+2)^{2} =4,048+x^{2} +x^{2}+4x+4\\ \\4x^{2}+8x+4=2x^{2}+4x+4,052\\ \\2x^{2} +4x-4,048=0$

Solve the quadratic equation using a graphing calculator

The solution is x=44

see the attached figure

$x+2=44+2=46$

therefore

The numbers are 44 and 46

4 0

3 years ago

I will give you 5 stars and a heart!

Artemon [7]

So from these given details will be right choice A. sure because given that 1 unit cube = 1 inch so from this result that 48 unit cubes = 48 cubic inches

hope this will help you

7 0

3 years ago

Evaluate the surface integral. s xy ds s is the triangular region with vertices (1, 0, 0), (0, 8, 0), (0, 0, 8)

zmey [24]

Parameterize $S$ by

$\vec s(u,v)=(1-u)v\,\vec\imath+8uv\,\vec\jmath+8(1-v)\,\vec k$

with $0\le u\le1$ and $0\le v\le1$ .

Then the surface element is

$\mathrm dS=\|\vec s_u\times\vec s_v\|\,\mathrm du\,\mathrm dv=8\sqrt{66}\,v\,\mathrm du\,\mathrm dv$

and the surface integral is

$\displaystyle\iint_Sxy\,\mathrm dS=8\sqrt{66}\int_0^1\int_0^18(1-u)uv^3\,\mathrm du\,\mathrm dv=\boxed{8\sqrt{\dfrac{22}3}}$

4 0

3 years ago

If f(x) is the total cost, in dollars, of x candles, which of the following statements best describes the meaning of f(2)=6

nevsk [136]

Answer: A) The total cost of 2 candies is $6.00.

Step-by-step explanation:

Hi, the question is incomplete, options are :

A) The total cost of 2 candies is $6.00. B) The total cost of 6 candies is $2.00. C) The total cost of 2 candies is $3.00. D) The total cost of 3 candies is $2.00.

So, to answer this question we have to analyze the function given:

f(2)=6

Since the input value x (number of candles) is 2, and the output (cost in dollars ) is $6, the correct option is :

A) The total cost of 2 candies is $6.00.

6 0

3 years ago