The scores on an exam were normally distributed with a mean of 84 and a standard deviation of 5. What is the probability that a randomly selected class member scored above 79? Answer as a percentage.

Answers

Answer 1

Answer:

0.841 (equivalent to 84.1%

Step-by-step explanation:

Chances are that your calculator has several different probability distribution functions built in.  Here we need the function    normal(

Typing that into a calculator, as follows, returns a decimal fraction which also represents the percentage of the time that a randomly selected class member scored above 79:

normalcdf(79, 1000, 84, 5) = 0.841 (equivalent to 84.1%)


Related Questions

Talia bought a home for her pet turtle the rectangular tank is 3 feet long. 1 foot wide and 2 feet high. What is the volume?

Answers

Answer:

Volume of rectangular tank = 6 cubic feet

Step-by-step explanation:

Length of the rectangular tank = 3 feet

Width of the tank = 1 feet

And height of the rectangular tank = 2 feet

Since, tank is in the shape of a cuboid,

Volume of a cuboid = Length × Width × height

                                 = 3 × 1 × 2

                                 = 6 cubic feet

Therefore, volume of the rectangular tank will be 6 cubic feet.        

Answer:

6

Step-by-step explanation:

What is the equation of the graphed line written in
standard form?
x=-3
y=-3
x+y =-3
x-y=-3

Answers

Answer:

the fist one

Step-by-step explanation:

its hard to rite on cumputer but i did this question before.

Drag and drop numbers and symbols into the blanks to complete an equation that can be used to find the value of y. Each symbol may be used more than once or not at all.

Drag and drop the numbers and symbols into the correct order.

Answers

Step-by-step explanation:

what grade you in bro I am 7 how am I supposed to know this

7,-3,12,-0.8,0.8,-10,-2 if these numbers represent temperatures in degrees Celsius which is the coldest?

Answers

Answer:

-10 i think

Step-by-step explanation:

The base of a right rectangular prism has an area of 173.6 square centimeters and a height of 9 centimeters. What is the volume, in cubic centimeters, of the right rectangular prism?

Bonus: Find the volume of the shape below!

Answers

Answer:

hope this helps

Step-by-step explanation:

We are given the an area of

173.6 cm

and a height of 9 cm.

We also know that the formula for area is lw, meaning we can substitute the area for lw

in the volume formula.

Now let's plug in what we know into the formula and solve for the volume:

V=(173.6 cm2)(9 c)=1562.4 cm3 The volume of the rectangular prism is

1562.4 cm3

.

________.______________

It takes Jim 3 hours to mow his lawn. Jim is 80% finished. How much longer, in minutes, will it take Jim to completely finish mowing his lawn?

Answers

Answer:

36 minutes

Step-by-step explanation:

Write down Jim's rate:  

 1 lawn            1 lawn

------------- or --------------------

 3 hours        180 minutes

Multiply numerator and denominator both by 0.20:

0.20 lawn

---------------     which tells us it will take Jim 36 more minutes to finish his

 36 min         mowing.

Help no links please ! Find the perimeter of the figure (I’ll mark brainliest if correct)

Answers

Answer:96

Step-by-step explanation:

9+9+9+9+9+9+12+30

The pattern 96, 92, 88, 84, ________ follows the "subtract 4" rule. Study the pattern to find traits that are not obvious in the rule. Explain.

Answers

Answer:

even numbers

Step-by-step explanation:

Answer: I can tell that all of them are even.

Step-by-step explanation:

how I can tell is that they end in 6,2,8,4,0 which are all even numbers

What is the value of x in this diagram? fo 1040 (x+10) 0 DO 43​

Answers

Answer:

option (B) 33 is right answer

Answer:

x = 33

Step-by-step explanation:

According to Supplementary Angle sum,

104° + x + x + 10° = 180°

=> 2x + 114 = 180

=> 2x = 180 - 114

=> 2x = 66

[tex] = > x = \frac{66}{2} [/tex]

=> x = 33 (Ans)

The answer to this question

Answers

Answer: B

Step-by-step explanation:

I believe so but I’m not sure I remember having that exact question I forgot

If u mind helping me some more it will be great thank u katie19

Answers

Lol okay
Less than <
Greater than >
Greater than >
-1/7,-1/2,-2/5,-3/10,-1/10
-2 2/3, -2, -1 2/3,
-1 1/3, -2/3

What is the measure of angle x? Enter your answer in the box. x=​

Answers

Answer:

43

Step-by-step explanation:

draft jsanedkhwebfkjrfkjrngkjnregjknerkgnkjerngkjerngkjenrg

Answers

Answer:

ok

Step-by-step explanation:

Find the measure of the third side of each triangle.

Answers

Answer:

2x - 2y

Step-by-step explanation:

P = 7x + 2y

P =a + b + c

7x + 2y = 2x + y +3x - 5y + c

7x + 2y - 5x - 4y

= 2x - 2y

Convert 25 yards to feet. Use the rate suggested by the equation 3 feet = 1 yard.
25 yards = [fe
feet

Answers

25 yards = 75 feet :)

David has four bags of apples and two bags of mangoes. The first four bags contain 6 apples each and the bags with mangoes contain 3 mangoes each. If David and his friends ate 2 apples from each bag and 2 mangoes from each bag, what is the total number of fruits left over?​

Answers

Answer:

tal vez sea el fotosíntesis pero no creo jaja

Step-by-step explanation:

pero mañana va?

Answer:

XDXDXDXDXDXDXD YO NO SE LA RESPUESTA :')

True or False:

(2x2 - 3x) - (4x2 - x) = -2x2 - 2x

Answers

the answer to it is is true
yeah it’s true

hey
pls solve this question

Answers

Answer:

(13/2)^27

Step-by-step explanation:

First note that ( )^0 = 1, so we need not bother with the last term.

Next, note that

 (2/13)^(-6) divided by (2/13)^3 is (2/13)^(-9).

Finally, we must cube this last result.  We get:  (2/13)^(-9*3) = (2/13^(-27)

or

(13/2)^27

Note:  we're "evaluating" an algebraic expression here, not "solving it," since there is no equation here.

HELPP ANYBODY KNOW THE ANSWERS TO THE BLANKS IN THE GRAPH?

Answers

Answer:

5,234

Step-by-step explanation:

PLEASE HELPPPPPPPPPPPPPPP

Answers

Answer:

6 x 2 = 12

8 x 4 = 32

6 x 2 = 12

________ +

56

What's the y intercept of the following equation?
10y = 20x + 30

Answers

Answer:

[tex]10y = 20y + 30 \\ y = 2y + 3 \\ y \: intercep = 3[/tex]

Ethan paid $3.36 in sales tax on a hooded sweatshirt that cost $42.00 before tax. At that rate, how much would he pay in sales tax if that same item costs $58.00 before tax?

Answers

Answer:

$4.64

Step-by-step explanation:

$42 x tax rate = 3.36

tax rate = 3.36/42

tax rate = 8%

$58x.08=4.64

1. The distance around a park is miles. Noah rode his bicycle around the park for a total of 3 miles. How many times around the park did he ride?

Answers

Answer:

2times

Step-by-step explanation:

3/2mi=1.5mi

3/1.5=2

2times

guys please help me with this question, I’d appreciate it a lot

Answers

the area of the rhombus is 31.5

b. 31.5

Step-by-step explanation:

AREA OF RHOMBUS = a=pq/2

a=9×7/2

63/2

=31.5

The computer lab offers classes after school. In addition to an hourly rate, h, a registration fee,f-
is charged. The equations below model the cost for a 2 hour and 3 hour class.
2h + f = 65
3h + f = 90

A.$30
B.$25
C.$35
D.$15

Answers

Answer:

I think is b or a...........................

Step-by-step explanation:

B.....

What is the value of the expression (2) 6 over 2?

Answers

Answer:

16 I think I dont know lol

can someone please help me with this question? (no links!!)

Answers

Answer:

95.03

Step-by-step explanation:

half the radius- 11/2=5.5

A=πr^2

=πx5.5^2

x+5-4x+5≤−4 plz help

Answers

Answer: x≥14/3

Step-by-step explanation: Hope this help :D

Answer:

Step-by-step explanation:

x+5-4x+5≤−4

-3x≤-14

3x≥14

x≥[tex]\frac{14}{3}[/tex]

HELPSDBNENANSSnshejs

Answers

I WILL TRY AND FIGURE IT OUT RQ

Answer:

64 left handed girls

25 left handed boys

89 total left handed students

Step-by-step explanation:

Multiply 320 x 0.2

Multiply 250 x 0.1

You can think of it this way, 0.2 is 2/10 and 0.1 is 1/10 so take 20 percent of 320 and 10 percent of 250

Add them up for your answer 64 + 25 = 89

lucia puts 6 pounds of strawberries into 3/4 pound boxes. how many boxes does Lusia fill

Answers

Answer:

8

Step-by-step explanation:

6 divided by 0.75 is 8 :)

Answer:

she will fill 8 boxes

Step-by-step explanation:

Other Questions
Plz help no links or downloads. What kingdom, led by Alexander, conquered the Greek city-states?1 pointPersiaRomeO O O OMacedonCyprus Bamboo and tea are found in the _____ of east Asia. $72 with a 40% markup What is the range of the function graphed below? A bar graph titled San Francisco's Population, 1860 to 1920. The x-axis is labeled in years from 1860 to 1920 by each decade. The y-axis is labeled Population from 50,000 to 550,000 by 100,000. 1860 is less than 50,000. 1870 is 150,000.By about how much did San Franciscos population increase between 1860 and 1870?by 100,000 peopleby 140,000 peopleby 210,000 peopleby 70,000 people I need the ones that are empty Why did Kennedy provide aid to some countries in Latin America, Asia, andAfrica? You own a portfolio that has $1,600 invested in Stock A and $2,700 invested in Stock B. Assume the expected returns on these stocks are 11 percent and 17 percent, respectively. What is the expected return on the portfolio what is meant by explanatory text someone help me!! i just gotta match these Please Help Me. I don't understand this question. Please help i need this to pass Yo puertorriqueo pero viviendo en Boston ahora. Mi hermano muy atltico pero no es bueno en los deportes porque muy perezoso. El vaso que en la mesa tiene leche que muy fra. Ese profesor muy aburrido. Habla y habla y no ve que los estudiantes aburridos. Tomaste sol? Veo que con mucho color. Uds. unos chicos listos, pero tienen problemas con sus clases porque nunca estudian y no listos para sus exmenes. Pedro, muy palido con ese susto (scare) que te acabo de dar. Los colores de tu casa interesantes, pero pienso que necesitan pintarla otra vez porque un poco viejos. l un chico bueno, pero hoy de mal humor. La graduacin ma en el centro del pueblo, debajo de las luces que cerca de la iglesia. PLZZZZZZZZ HELP!!!!!!!!!!!!!!!!! solve for the variable u^2 + 2 = 11 What is the smallest unit (monomer) of DNA called?Required to answer. Single line text.(2 Points) Bella spent 20% of her paycheck at the mall, and 40% of that was spent at the movie theater. Bella spent a total of $14,40 at the movie theater for her movie ticket, popcorn, and a soft drink. How much money was in Bella's paycheck? help :( math due tonight Answer the dang question.