salaries of nurses in southern california are normally distributed with a mean of $6250 and a standard deviation of $250. what is the probability the mean salary of 25 randomly selected nurses is below $6150 or is above $6350 a month

Answers

Answer 1

Step-by-step explanation:

z-score of X = 6150

[tex] \frac{6150 - 6250}{250} = - 0.4 \\[/tex]

z-score of X = 6350

[tex] \frac{6350 - 6250}{250} = - 0.4[/tex]

P(X<6150) + P(X>6350)

=P(z<-0.4) + P(z>-0.4)

=0.3446+0.3446

=0.6892


Related Questions

100 POINTS FOR THE CORRECT ANSWER
(03.03 MC)

A marine biologist is studying the growth of a particular species of fish. She writes the following equation to show the length of the fish, f(m), in cm, after m months:

f(m) = 3(1.09)m

Part A: When the marine biologist concluded her study, the length of the fish was approximately 5.98 cm. What is a reasonable domain to plot the growth function? (4 points)

Part B: What does the y-intercept of the graph of the function f(m) represent? (2 points)

Part C: What is the average rate of change of the function f(m) from m = 2 to m = 8, and what does it represent? (4 points)

Answers

Answer:

I hope this helped. Look throught the pictures

Step-by-step explanation:

Answer:

Part A: 0<x<9

Part B: The y-intercept 3 represents how big the fish was when she first started her study.

Part C: The average rate of change from m=2 to m=8 is 2.09, and it represents the growth of the species of fish.

I don't know about Part C, but I hope this helps!

Guided Practice


Find the slope of a line parallel to y=1/2x+2.3.


A.
1/2


B.
−1/2


C.
2

Answers

B -1/2. Hope this helps

Answer:

A. 1/2

Step-by-step explanation:

GradPoint answer

I got it correct on the lesson.

Help me please help me help please

Answers

Answer:

4

Step-by-step explanation:

-4/-1 = 4

How many unique three-letter sequences can be made from the word COMBINATORICS where no 2 letters can be the same?

Answers

Answer:

BIN

TIC

SIT

BIT

MOB

ROT

SIR

BAN

BAM

TAN

RAT

ROB

theres tons of words you can make, just take a few seconds and find as many as you can

Answer:

720

Step-by-step explanation:

the way I read this problem is like a Scrabble set. Start by getting a unique set of letters:

COMBINATRS

10 unique letters

10! / (10-3)!

10! / 7!

720

• A man observes the angle subtended by a pole to be 30'. He walks 10 metres towards its base and finds that it subtends an angle of 45'. Find the height of the pole.
(A) 12.65 m (B) 13.66 m (C) 15 m (D) 14 m​

Answers

Answer:

13.66m

Step-by-step explanation:

Needs to show work.
1. Refer to the equation 2x − 6y = 12.
(a) Write the equation in Slope Intercept Form.

Answers

Answer:

y = 1/3x - 2

Step-by-step explanation:

2x − 6y = 12

-6y = -2x + 12

y = 1/3x - 2

I don’t know how to do this promise or start it

Answers

Answer:

Where is the question ?

Step-by-step explanation:

1.
D x y
a dxdy
 
  
2
   S D r  4 .

Answers

Answer:

ok

Step-by-step explanation:

ok fjFjxggkgclclcchlclcullcucuclcvuullulj

Six more than a number is 17

Answers

The unknown number given from the expression Six more than a number is 17 is 11

How to solve linear equation?

let

The unknown number = x

x + 6 = 17

subtract 6 from both sides

x = 17 - 6

x = 11

check:

x + 6 = 17

11 + 6 = 17

Learn more about equation:

https://brainly.com/question/1214333

#SPJ1

Convert the equation − x − 2 y = 8 from standard to slope-intercept form

Answers

Answer:

y = -1/2x - 4

Step-by-step explanation:

We have our equation in standard form: -x - 2y = 8. We can use simplifying rules to isolate y on one side of the equation and give us our y = mx + b format. I'll begin by adding x to both sides.

-x - 2y = 8

-2y = x + 8

Now that we have y on one side, we can divide everything by -2.

-2y/-2 = x/-2 + 8/-2

y = -1/2x - 4

That looks like y = mx + b form.

If you have any further questions or need clarification on anything, let me know!

HELPPP!!! WILL MARK BRAINLIEST!!! 10 PTS

Find an equation for the graph sketched below:

Answers

Answer:

Plot the coordinate points and connect them with a smooth curve.

Hope This Help you po..

pa brainlest?

The equation for the graph is y = [tex]2(3)^{x} -5[/tex]  .

What are Exponential Equations?

An exponential equation is an equation with exponents where the exponent (or) a part of the exponent is a variable.

Standard exponential equation :

y = [tex]a(b)^{x} + k[/tex]

where a is the initial value

b represents the base of the exponential function

x will represent the input of the function

y = k is the single horizontal asymptote

k is  constant

According to the question

The figure in the graph is an exponential graph .

To derive the equation

we will use Standard exponential equation :

y = [tex]a(b)^{x} + k[/tex]  

Now,

There are two points in graph

(0.-3) and (1,1)

k = - 5  ( distance from 0)

now ,

Substituting the values

y = [tex]a(b)^{x} + k[/tex]  

y = [tex]a(b)^{x} -5[/tex]

for point   (0.-3)

-3 = [tex]a(b)^{0} -5[/tex]  

-3 = [tex]a -5[/tex]

a = 2  

for point   (1,1)

1 = [tex]2(b)^{1} -5[/tex]  

1 = 2b - 5

b = 3

Therefore , equation of exponential graph is  

y = [tex]2(3)^{x} -5[/tex]  

Hence ,The equation for the graph is y = [tex]2(3)^{x} -5[/tex]  .

To know more about Exponential Equations here:

https://brainly.com/question/23729449

#SPJ3

A farmer wants to enclose a rectangular field of 15,000 ft^2. It’s width is 470 ft less than its length. What are the dimensions of the field.

Answers

Given that the area of the rectangular field is 15,000 sq. ft and it's width is 470 ft less than the length of the of the field, the dimensions of the field would be:

Length = 500 ftWidth = 30 ft

Recall:

Area of rectangle: A = length x width

Given:

Area of rectangular field = 15,000 sq. ftlength = lwidth = l - 470

Required:

Dimensions of the field (the length and the width).

Thus, using the area formula, the equation below is derived:

[tex](l)(l - 470) = 15,000[/tex]

Solve for l

[tex]l^2 - 470l = 15,000\\\\l^2 - 470l - 15,000 = 0\\\\[/tex]

Factorize

[tex](l + 30)(l - 500) = 0\\\\[/tex]

[tex]l = -30 $ or $ l = 500[/tex]

We will go with the positive value, which is 500.

Therefore, the length of the rectangular field is 500 ft.

Width = l - 470

Plug in the value of l

Width = 500 - 470

Width = 30 ft

Therefore, given that the area of the rectangular field is 15,000 sq. ft and it's width is 470 ft less than the length of the of the field, the dimensions of the field would be:

Length = 500 ftWidth = 30 ft

Learn more here:

https://brainly.com/question/16410706

solve pls brainliest

Answers

Step-by-step explanation:

a))) -31-71=-102

b)-9+14=+5

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

A. - 31 - 71 = - 102

B. - 9 + 14 = 5

»»————- ★ ————-««  

Here’s why:  

⸻⸻⸻⸻

A. The minuend, subtrahend, and difference are parts of a subtraction problem. In the subtraction problem, - 31 - 71 = - 102, the number - 31 is the minuend, the number 71 is the subtrahend and the number - 102 is the difference.

B. When you are adding a negative number to a positive number you are effectively subtracting the second number from the first. ... And then you add the negative number, which means you are moving to the left – in the negative direction.

⸻⸻⸻⸻

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  

simplify this please

Answers

Answer:

0? I tried solving it myself then I put it into my calculator and both times I got 0

rick haskins is payed $18 an hour as a pastry chef for a regular 35-hour week his over time rate is 1.5 times his regular hourly rate this week he worked his regular 35 hours plus 8 hours of overtime what is ricks total pay

Answers

Haskins played 59$ to the valve

Estimate the sums and difference of 38.12 + 12.24 and round to the nearest tenth

Answers

Answer:

50.4

Step-by-step explanation:

38.12 + 12.24 = 50.36

6 is near 10

50.36 = 50.4

help me please!!!!!!!!!!!!!!

Answers

Answer:

7√ 121

Step-by-step explanation:

Lisa bought a refrigerator on sale for 50% off the original price, for $235. What was the original price before the sale?

Answers

Answer:

470$

Step-by-step explanation:

50% = 1/2

235 * 2 = 470

At a movie theater, the price of 2 adult tickets and 4 child tickets is $48. The price of 5 adult tickets and 2 child tickets is $64. What is the ticket price for one adult and for one child?

Adult: Child:

Answers

Answer:

adult=10

Child=7

One adult and one child=10+7=17

Step-by-step explanation:

Let a be the price of an adult ticket

c = price of the child ticket

2a+4c = 48

5a+2c = 64

Multiply the second equation by -2 and add to the first equation

2a+4c = 48

-10a-4c = -128

---------------------

-8a +0c = -80

Divide by -8

-8a/-8 = -80/-8

a = 10

Now find c

2a+4c=48

2(10)+4c=48

20+4c=48

4c=48-20

4c=28

4c/4=28/4

c=7

Answer:

look at the photo..........

Type the missing number in this sequence:
16, 7, __, -11, -20​

Answers

-2

The difference between 16 and 7 is 9 and the difference between-11 and -20 is 9 as well meaning that the numbers go down in 9

therefore 7-9 is -2

Hope this helped you- have a good day bro cya)

-2. 7-9= -2. Hope this helps

Given the relation shown in the table below :

Answers

Answer:

domain: -7, -1, 0, 1

Range: -1, 0, 1, 2, 7

Step-by-step explanation:

I don't know the drop-down menu choices so I can't answer that one for you sorry :(

But I hope this helps :)

Noah’s remote control car moved 12 feet in 6 seconds. Which graph has a slope that best represents Noah’s car’s average rate of speed?

Answers

We want to find a graph that represents Noah's average speed.

We define the average speed as the quotient between the distance moved and the time it takes to move that distance, then in this case we will have:

s = 12ft/6s = 2ft/s

Then we can define a linear equation:

y = (2ft/s)*x

As the distance that Noah travels in x seconds.

The graph of the given linear function can be seen below, and that is the graph with the slope that best represents Noah's average speed.

If you want to learn more, you can read:

https://brainly.com/question/11897796

Use the graph below to find the indicated expression: f(3)-f(-3)

Answers

Answer:

f×3-f×(-3)

3f+3f

solution:

6f

Step-by-step explanation:

hope it's can help

what is the first digit in the quotient of 1,898 divided by 9

Answers

9514 1404 393

Answer:

  0

Step-by-step explanation:

The first digit of the quotient is 0. This is because the first digit of the dividend (1) is less than the divisor (9).

See the attached image for the complete long division.

__

The first non-zero quotient digit is 2 = 18/9.

−4 1/3 ÷ (2 3/5)
For brainliest :3

Answers

Answer:

lskzjkkzjzbzniziakanzjs

Answer:

-5/3

Step-by-step explanation:

change numbers into fractions

KCF(keep change flip)

simplify

The sum of two numbers is −12.6 , identify two negative addends that make the statement true.

Answers

Answer:

–7.4 and –5.2

Solution:

–7.4 + –5.2 = –12.6

Message:

I hope this helps

Simplify by using the product, quotient, and power rules

Answers

Answer:

3y^5

Step-by-step explanation:

Helpp i have 12 minutes

Answers

Answer:

the answer is 924.8 round it up and you get 925

Step-by-step explanation:

3 (1 2t) = 3t + 5 !!​

Answers

Answer:

2/3

Step-by-step explanation:

3+6t=3t+5

like terms together

6t-3t=5-3

3t=2

t=2/3

Select the shapes that are similar to shape A

Answers

Answer:

Orange and pink, I'm not too sure

Answer:

Orange and pink.

Step-by-step explanation:

Because there shapes are same.

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