Suppose, 10 students have been selected for the prestigious Sir Abed Scholarship for
their excellent performances in extracurricular activities and academic results. Let’s say,
there are 4 types of award: A (100% +), B (100%), C (97%) and D (95%) . Also, a
student has an equal chance of getting any of these 4 scholarships. What is the
probability that exactly 4 of the 10 students get A and 3 students get C?

Answers

Answer 1

Answer:

0.1459, 0.2503

Step-by-step explanation:

Probability of getting exactly 4 A out of 10,  

P(X==4) = 10C4 (1/4)^4 (3/4)^6

=0.1459

Probability of getting exactly 3 C out of 10,  

P(X==3) = 10C3 (1/4)^3 (3/4)^9

=0.2503

[BRACU PEACE ]


Related Questions

6 out of 13 of your
friends are on the
basketball team. What
percent of your friends
are on the basketball
team? Round to the
tenths place.

Answers

Answer:

46.2%

Step-by-step explanation:

6/13 x 100% = 46.1538461538% (rounded to the nearest tenth: 46.2%)

Hope that helps!

Answer:

(A) Theoretical

Step-by-step explanation:

bec this is the real answer

A pedagogical research institute wanted to test a new method for teaching geometry by assessing whether It helps students achieve higher grades. They decided to conduct a study using A volunteering high school with a total of 750 students At the beginning of the semester, 2 out of the 4 high schools were randomly picked to use the new teaching method, while the remaining 2 schools kept teaching with traditional methods. The first pair had a total of 400 students, and the second pair had a total of 350 students. By the end of the semester, the researchers compared the average scores in the geometry section of the final exam for each pair of schools. What type of statistical study did the researchers use

Answers

Answer:

Experimental Statistical Study

Step-by-step explanation:

Of the three types of statistical study, the one used by the researcher in this question is the experimental statistical study and the reason is as follows:

From the question, a study was conducted on a total of 4 high schools; these high schools were further divided into 2 pairs.

Each pair were subjected to or experimented with different method of teachings. At the end of the semester, the average were compared.

This implies that both pairs were experimented based on different teaching methods and the result of the methods were measured in order to determine which of the methods is better.

This type of study is experimental

Answer:

Experiment ; No, because the schools could be very different, meaning the randomization won't smooth out other effects.

Step-by-step explanation:

find x. round to the nearest tenth

Answers

See picture. Hope it helps

Please help me on question 1 :)

Answers

Please repost!! I can’t see the picture!

What is the value of x?

Answers

The value of x is 12 I believe

Each pair of polygons is similar. Write a similarity statement for the polygons and the scale
factor

Answers

Answer:

second one r                  

Step-by-step explanation:

Question 1 (1 point) Two points on a line are M(4.5) and N(-2,9). Which ratio represents the slope of the line? О а Ob CON -11-13 oc 7​

Answers

Answer:

The slope of the line is [tex]-\frac{2}{3}[/tex]

Step-by-step explanation:

Slope:

When we have two points on a line, the slope is given by the change in y divided by the change in x.

Two points on a line are M(4,5) and N(-2,9).

Change in y: 9 - 5 = 4

Change in x: -2 - 4 = -6

The slope is:

[tex]m = \frac{4}{-6} = -\frac{2}{3}[/tex]

The slope of the line is [tex]-\frac{2}{3}[/tex]

Angle measures 82.6° less than the measure of its supplementary angle. What is the measure of each angle

Answers

Answer:

  131.3°, 48.7°

Step-by-step explanation:

Let x represent the larger angle. Then x-82.6 is the smaller one. Their sum is ...

  x +(x -82.6) = 180

  2x = 262.6

  x = 131.3

  x -82.6 = 48.7

The two angle measures are 48.7° and 131.3°.

Anthony has sold 1 1/5 of a box full of Boy Scout cookies for his troop. His sister Anna has sold 9/10 of a box full of Girl Scout cookies. Who has sold more cookies?

Answers

Answer:you can find out

Step-by-step explanation:

Turn 1 1/5 into a mixed number and then draw both fractions as circle or pi charts and fill in the amount of spaces to equal the fraction.

Its 1 1/5 :)

(7+c) + 4 simplify the expression explain each step

Answers

Answer:

11 + c

Explanation:

In the parenthesis, 7 + c cannot be simplified, so there is no need for them. Now we have 7 + c + 4. Only 7 and 4 can be added. 7 + 4 = 11. The answer is 11 + c.

Answer:

c+11

Step-by-step explanation:

What is m KJL? ( thank you for anyone who answers!!)

Answers

Answer:

54 degrees. The triangle is isosceles, so 180-72= 108.

108/2=54

The solution is,  m KJL=54 degrees.

What is an angle?

In Plane Geometry, a figure which is formed by two rays or lines that shares a common endpoint is called an angle. The two rays are called the sides of an angle, and the common endpoint is called the vertex.

here, we have,

from the given figure, we get,

The triangle is isosceles,

so 180-72= 108.

and, we know,

∠J=∠L

So,

108/2=54

Hence, The solution is,  m KJL=54 degrees.

To learn more on angle click:

brainly.com/question/28451077

#SPJ5

the average length of a female dophin is 234 inches

what is the answer in feet and inches

Answers

Answer:

in feet its 19

In inches it would be 4

Plz help yo boi out thank u

Answers

Answer:

either the first or second but id go with the second one!

Step-by-step explanation:

It’s the second one :-)

please help me out asap!
identify the slope and y-intercept.

y = - 5​

Answers

Answer:

The Slope is 0, the y-intercept is -5

Step-by-step explanation

Remember the formula

y = mx + b

m = slope

b = y-intercept

In this situation

y = 0x - 5

m = 0

b = -5

please help I will mark you brainiest!!!

Answers

Answer:

1080 - 240 = 840

Step-by-step explanation:

every single extended warranty is 20 bucks. that being said, u can like.. you know multiply the thing the the the 20 by 12 then minus. walla


A square playground has sides that are 17 meters long. What is the playground's area?

Answers

The playground is 68 meters long

Find the slope of the graph

Answers

Hi there! Your answer is -1/9

Please see an explanation for a better and clear understanding to your problem.

Any questions about my answer and explanation can be asked through comments!:)

Step-by-step explanation:

[tex] \large \boxed{ m = \frac{y_2-y_1}{x_2-x_1} }[/tex]

The formula above is slope formula. We will be using this to find a slope of a line.

From the graph, there are two points which are (4,0) and (-5,1).

You can either let (4,0) = (x1, y1) or (x2, y2) but I will be letting (-5,1) =(x2, y2)

Substitute the coordinate points in.

[tex] \large{m = \frac{1 - 0}{ - 5 - 4} } \\ \large{m = \frac{1}{ - 9} } \\ \large{m = - \frac{1}{9} }[/tex]

Hence, the slope is - 1/9. If you are curious where m-term comes from, it comes from y = mx+b where m = slope and b = y-intercept.

can you help me please ​

Answers

The answer is -7.137x10^-3

The temperature changes from 9°F to −5°F. Which of the following expressions model the distance on the thermometer between 9°F and −5°F? Choose all the correct answers.

Answers

Answer:

wouldnt it be 13? and do you have have ps3

Help fast please....

Answers

Answer:

152 cm²

Step-by-step explanation:

Which number has an absolute value greater than 4?

Answers

Answer:

0

Step-by-step explanation:

Sorry if this doesn't help much and if its wrong, but maybe you could mark this as brainly? Have a wonderful day!

Consider the function f(x)=-3x2+12x-5. What is the location of the vertex? Write your answer as an ordered pair.

Answers

Answer:

The (x,y) point of the vertex is usually labelled as:

Vertex = (h, k)

h = -b / 2a

k = ah^2 + bh + c

f(x) = -3x^2 + 12x -5

a = -3 b=12 c=-5

h = -12 / -6  therefore h = 2

k = -3*2^2 + 12*2 -5

k = -12 + 24 -5  therefore k = 7

Vertex (2, 7)

Source: http://www.1728.org/quadr3.htm

Step-by-step explanation:

7) At what interest rate would a deposit of $50,000 grow to $111,277 in 25 years with continuous compounding?
A) 3.2%
B) 6.2%
C) 1.2%
D) 4.2%

Answers

C) 1.2%
Hope this helped !!

Mr. Gow needs to build a wheelchair access ramp for the school's auditorium. The ramp must rise a total of 3 feet to get from the ground to the entrance of the building. In order to follow the state building code, the angle formed by the ramp and the ground cannot exceed 4.75°.

Mr. Gow plans from the planning department that call for the ramp to start 25 feet away from the building code?

a. Draw an appropiate diagram. Add all the measurements you can. What does Mr. Gow need to find?

b. According to the plan in part (a), what angle will the ramp make with the ground? Will the ramp be to code?

c. If Mr. Gow builds the ramp exactly to code, how long will the ramp be? In other words, at least how far from the building must the ramp start in order to∞ meet the building code? Show all work.

(NOT A MULTIPLE CHOICE)

Answers

9514 1404 393

Answer:

  a.  see below for diagram. Angle for the length; length for the angle

  b. 6.84°; not to code

  c. 36.1 ft

Step-by-step explanation:

a. The diagram is shown below. Mr. Gow needs to find the angle it makes in order to determine if it is up to code. Alternatively, Mr. Gow needs to find the required length for a ramp that meets code.

__

b. The angle the ramp makes can be found using the tangent relation.

  Tan = Opposite/Adjacent

  tan(angle) = 3/25

  angle = arctan(3/25) ≈ 6.84°

The ramp will make a 6.84° angle with the ground. It will not meet code.

__

c. We can find the distance from the building where the ramp must start using the same trig relation.

  tan(4.75°) = (3 ft)/(distance)

  distance = (3 ft)/tan(4.75°) ≈ 36.1 ft

The ramp must start 36.1 feet from the building to exactly meet code.

ABOVE answer is absolutely correct


Before swallowing a large rodent, a python weighs 152 pounds. After swallowing the rodent, the python weighs 164 pounds. Find the weight of
the rodent
The weight of the rodent is pounds.

Answers

Answer:

The rodent weighs 12 pounds.

Step-by-step explanation:

164 - 152 = 12

1 + 1 = ?

I’m so lost with this one

Answers

Answer:

2

Step-by-step explanation:

Answer:

I believe it's 2

Step-by-step explanation:

that was so hard I had to use a calculator

Plsss help I’m begging u

Answers

Answer:

translation

Step-by-step explanation:

Ik its ridoculas so I looked it up believing myself

Write the equation and solve:
I. You and three friends go to the town carnival. You have a coupon for $20 off that will
save your group money! If the total bill to get into the carnival was $100, how much does one
regular price ticket cost?
Write the equation and solve:

Answers

Answer:

The regular cost of each ticket is $30

Step-by-step explanation:

Hi,

You and three friends means there was a total of 4 people. Your equation is...

4x - 20 = 100

Remember to add the -20 since there was a coupon that saved you $20.

Now solve...

4x - 20 = 100

+ 20 on both sides

4x = 120

Divide by 4 on both sides

x = 30

The regular cost of each ticket is $30

Hope this helps :)

Answer:

e it's  really first question re  want to make this

each ticket would be $25  a regular

Step-by-step explanation:

Tell me if this is right

Answers

Answer:

what I'm bored

Step-by-step explanation:

what's u need help with anything I'

I need help plzzzzzzzzz​

Answers

Answer is:

a= 90-70

=20

Answer:

The missing angle is 20°

Step-by-step explanation:

The square by the vertex indicates that this is a right angle. A right angle measures 90°. So what you can do is subtract the 70° from the 90°, to get 20°.

Hope this helps! Have a great day! :)

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