A student is taking a true/false quiz with 16 questions. The student has not studied and has an equal chance of answering True or False on each question. What is probability that the student will answer at least 12 questions correctly?

Answers

Answer 1

Chance of success

0.03841 or 3.84%

Step-by-step explanation:


Related Questions

Recursive & Explicit Definitions
Given the explicit definition: tx = 2- (n-1) - 5 and that t2 = 4, find t14

Answers

Answer:

-n-2

Step-by-step explanation:

Write the equation of the line passing through the points (-4, 5) and (4, 1).

Answers

9514 1404 393

Answer:

  y = -1/2x + 3

Step-by-step explanation:

It can work to start with the 2-point form of the equation for a line.

  y = (y2 -y1)/(x2 -x1)(x -x1) +y1

  y = (1 -5)/(4 -(-4))(x -(-4)) +5 . . . . . fill in point values

  y = -4/8(x +4) +5 . . . . . . . . simplify a bit

  y = -1/2x -2 +5 . . . . . .eliminate parentheses

  y = -1/2x +3 . . . . collect terms

What is the value of "twelve more than the quotient of a number and two, decreased by four" when n = 4?
4
6
10
14

Answers

Answer:

Maybe 10 Is the answer

Answer:

the answer is 10

Step-by-step explanation:

Brainiest for the right answers...

Answers

Answer:

9. B 10. C 11. B 12. B

Step-by-step explanation:

Diane has 7 meters of fabric to make a dress. One meter is approximately 1.1 yards. How many yards of fabric does Diane have?

Answers

Answer:

7.7 yards & 14.04 gallons

Step-by-step explanation:

so theres 1.1 yards per meter which can be written out as

1.1 yds/1 meter

multiply that by 7 meters would get you 7.7 yards

same with the punch:

0.26 gallons/ 1 liter times 54 liters = 14.04 gallons

Factorise completely
X^2+7x-18​

Answers

Look at the screenshot below

a farmer has horses and cows if the radio of horses to cows is 3 to 5 and there are 15 horses how many animals are there

Answers

Answer:

Step-by-step explanation:

h/c=3/5=15/c

c=25, 25+15=40 animals

toby has already cycled 6 kilometers this year, plus he plans to cycle 14 kilometers during each trip to work. after 3 trips to work, how many kilometers will toby have cycled?

Answers

Answer:

48 kilometers

Step-by-step explanation:

If Toby has traveled to work 3 times, and each time he traveled 14 kilometers, to find out how many kilometers he's traveled total, all you have to do is multiply 14 x 3, which equals 42. To find out how many kilometers he's traveled in all this year, just add the amount of kilometers he has already traveled. (42+6)

solve the equation 3x+4=20​

Answers

Answer:

x=8

Step-by-step explanation:

Answer:

3x + 4 = 20

_-_4_-_ 4_

   _3x_ =_ 16_

       3         3

Step-by-step explanation:

x = 16_

       3

30 = 2.5x
What is x equal to? Help please!

Answers

Answer:

x = 12

Step-by-step explanation:

30=2.5x for you to find the value of x divide both side by 2.5.

30 = 2.5x

2.5   2.5

12 = x

To check your answer, substitute the value of x.

30 = 2.5 (12)

30 = 30

If it is equal, your answer is correct!

x is equal to 12 in the given equation 30 = 2.5x.

To find the value of x in equation 30 = 2.5x, we can solve for x by isolating it on one side of the equation.

Given equation: 30 = 2.5x

To isolate x, we need to divide both sides of the equation by 2.5:

30/2.5 = (2.5x)/2.5

Simplifying this equation, we have:

12 = x

Therefore, x is equal to 12.

By dividing both sides of the equation by 2.5, we effectively cancel out the multiplication of x by 2.5, leaving us with the value of x. So, when 12 is substituted for x in the original equation, 2.5 times 12 equals 30, confirming that the value of x = 12 satisfies the equation.

Hence, x is equal to 12 in the given equation 30 = 2.5x.

To learn more about the equation;

https://brainly.com/question/12788590

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please help 6th grade math im new to it pleaae explain good​

Answers

Answer:

0.6

Step-by-step explanation:

Given the trapezoid formula:

1/2(b1+b2/2)xH

We are given the numbers for the trapezoid:

0.3,0.9,1

To solve this here is what we are going to do.

1/2(0.9+0.3)x1

So add 0.9+0.3=1.2

Then Divide 1.2/2=0.6

So multiply 0.6 x 1=0.6

0.6 is your answer

A mug is 3/7 full. The mug contains 4/7 of a cup of water. Find the capacity of the mug.

Answers

Answer:

7/6 cups

Step-by-step explanation:

Mug is 2/7 full

Amount of water in the mug = 1/3 cup

Assume the full capacity of the mug = m

Then the current capacity of water in mug = (2/7) of m = (2/7)m

Current capacity of water in mug is equivalent to 1/3 cup of water

Hence,

(2/7)m = 1/3

2m/7 = 1/3

Cross multiply

(2m * 3) = 7 * 1

6m = 7

m = 7/6

m = 1 1/6 cups

HELP ME PLEASE FAST!!!!!!!!!!!!!!!1

Answers

Answer:

B.

Step-by-step explanation:

B. is the answer

What is the monthly payment for a ​$14,000 loan for 6 years with an annual interest rate of 3.1​%?

Answers

Answer:

Calculate the monthly and total repayment cost of your personal loan using the ... 1 year, 2 years, 3 years, 4 years, 5 years, 6 years, 7 years, 8 years, 9 years ... annual interest rates (APRs), you can see how your monthly loan repayments ... We compare loans that can be paid back over terms of between one and 25 years.

Very good good ahaha

Write an algebrale expression for the phrase "elghe more than three times a
number

Answers

x 3

Step-by-step explanation:

Paul placed black and white square tiles on a rectangular floor using the pattern shown below. If the entire floor measures 9 feet by 12 feet, what is the total number of black tiles that Paul used?

Answers

you have to show the pattern

Dustin is recording what kind of shoes people are wearing at the mall. He has seen 24 people
wearing boots and 63 people wearing other shoes. What is the experimental probability that
the next person Dustin sees will be wearing boots?
Simplify your answer and write it as a fraction or whole number
P(boots) =

Answers

Answer:

P=24/63

that is the probability

Step-by-step explanation:

hope helps

Given:

A =
1 −1
−2 3
B =
1 5
8 −8
C =
1 2
3 4
Solve:

AX + B = C

Answers

Answer:

-5 3,

-5 6

Step-by-step explanation:

assignment on ed

If a triangle has sides of 6, 8, and 9, then it is call a________ triangle

Answers

Answer:

Right triangle

Step-by-step explanation:

Oxford Junior High's students were asked to report their favorite snacks.

Chips
40%
Grapes
60%
Favorite snacks


If 100 people were surveyed, how many people voted for grapes?

Answers

60 people. If you break the 100% down to 100 people, you’ll see that 60% turns into 60 people, and 40% turns into 40 people. Only reason that works with this question is because there’s 100 people.

what to multiply from 3/4 to 1

Answers

1.3 recurring because divide 1 by 0.75

25, 27, 24, 26, 40
A. What is the mean of the data?
B. What is the median of the data?

Answers

mean is 28.4 (all numbers added together then divided by the amount of numbers)
median is 24 (the middle number)
THE ANSWERS R a. IS 28.4 b. IS 26

Which line has a slope of 0?
y= -10
2y + 6x = 0
x= – 5
y=x+5

Answers

When the equation of any line reads "y = a number",

its graph will always be a horizontal line, meaning zero slope.

So the equation y = -10 has a slope of 0 which

means its a flat or horizontal line.

what is 8 2/10 minus 4 1/3

Answers

Answer:

Convert the mixed numbers to improper fractions, then find the LCD and combine.

Exact Form:

58 /15

Decimal Form:

3.8 6

Mixed Number Form:

3  13 /15

Step-by-step explanation:

Rewriting our equation with parts separated
=8+21−4−13
=
8
+
2
1

4

1
3
Solving the whole number parts
8−4=4
8

4
=
4
Solving the fraction parts
21−13=?
2
1

1
3
=
?
Find the LCD of 2/1 and 1/3 and rewrite to solve with the equivalent fractions.
LCD = 3
63−13=53
6
3

1
3
=
5
3
Simplifying the fraction part, 5/3,
53=123
5
3
=
1
2
3
Combining the whole and fraction parts
4+1+23=523
The answer is 5 2/3

4. Use the two patterns below. What are the first four ordered pairs formed from
corresponding terms of the two patterns? *
Add 4: 0, 4, 8,
Add 2: 0, 2, 4,

Answers

Answer:

0,2,4,8

Step-by-step explanation:

:)

What does the number of solutions of a system of linear equations represent ?

Answers

Answer:

the places where the linear graphs meet are at the same point

2) Will the border line of the graph of y< -22 +42 +5 be a solid line or a broken
line?

Answers

Answer:

69[tex]) ) 22 + 42 + 5 = 69 \sqrt{()xy { { \sqrt[ log_{e\% \sin( \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \infty \alpha \pi\% log( log( log( log( log( log( log( log(?) ) ) )[/tex]

Match each statement with the correct reasoning in the proof below.

helpl

Answers

Answer:

When demand for goods increases - Price will rise

When supply of goods increases - Prices will fall

Step-by-step explanation:

Supply and demand function works oppositely in economy. When there is huge demand for goods and supply is short then prices will rise. This is because supply is not sufficient to meet the demand and the market is not in equilibrium position.

A middle school took all of its 6th grade students on a field trip to see a ballet. The students filled 1898 seats, which was 73% of the total number of seats in the theater. How many total seats were in the theater?

Answers

Answer:

x = 2600 seats.

Step-by-step explanation:

Let the total number of seats be x.

Given the following data;

Number of seats occupied = 1898 seats

Percentage = 73%

To find the total number of seats;

Translating the word problem into an algebraic equation, we have;

[tex] \frac {73}{100} * x = 1898 [/tex]

Cross-multiplying, we have;

[tex] 73x = 1898 * 100 [/tex]

[tex] 73x = 189800 [/tex]

[tex] x = \frac {189800}{73} [/tex]

x = 2600 seats.

Therefore, the total number of seats in the theater are 2600 seats.

On a given day, the proportion of workers from Company B who purchase a coffee from the company cafeteria is 0.62 and the proportion of workers from Company C who purchase a coffee from the company cafeteria is 0.71. A random sample of 40 workers was selected from Company B and another random sample of 40 workers was selected from Company C. The proportion of workers from Company B who purchased coffee was

Answers

Complete question is;

On a given day, the proportion of workers from Company B who purchase a coffee from the company cafeteria is 0.62 and the proportion of workers from Company C who purchase a coffee from the company cafeteria is 0.71. A random sample of 40 workers was selected from Company B and another random sample of 40 workers was selected from Company C. The proportion of workers from Company B who purchased coffee was p^_B = 0.70 and the proportion of workers from Company C who purchased coffee was p^_C = 0.75.

What is the correct unit of measurement for the mean of the sampling distribution p^_B - p^_C?

A) Days

B) Dollars

C) Companies

D) Workers

E) There are no units associated with the mean of the sampling distribution

Answer:

E) There are no units associated with the mean of the sampling distribution

Step-by-step explanation:

We are given;

Population proportion for workers from Company B who purchase a coffee from the company cafeteria as 0.62

Population proportion for workers from Company C who purchase a coffee from the company cafeteria as 0.71

Now, we were told that a random sample of 40 each were selected from both company B & C and the sample proportion were;

p^_B = 0.70 and p^_C = 0.75

Now, this proportions don't have any units as it is based on a ratio of the number of people that purchased coffee to the number of people surveyed.

Thus we can conclude that p^_B - p^_C will not have any units associated with it.

The possible outcomes of the difference in proportions of the two samples

based on on the individual proportions are not associated with a unit.

The correct option for the unit of measure of the sampling distribution [tex]\hat p_B - \hat p_C[/tex] is E. There are no units associated with the mean of the sampling distribution.

Reasons:

The given parameters are;

The proportion of workers of Company B who purchase coffee from the

Company B workers that purchase coffee from the cafeteria = 0.62

Company A workers that purchase coffee from the cafeteria = 0.71

Number of workers in the sample from Company B = 40

Number of workers in the sample from Company A = 40

Proportion of Company B workers who purchase coffee, [tex]\hat p_B[/tex] = 0.71

Proportion of Company C workers who purchase coffee, [tex]\hat p_C[/tex] = 0.75

Required:

The unit of the mean of the sampling distribution of [tex]\mathbf{\hat p_B - \hat p_C}[/tex]

Solution:

The proportion of the workers that purchase coffee is given by the ratio of the number of workers that purchase coffee to the number of workers in the sample.

Therefore;

[tex]\displaystyle \hat p = \mathbf{\frac{Coffee \ buying \ workers}{Total \ number \ of \ workers}}[/tex]

Given that the unit of the numerator and denominator are both workers,

that divide out, we have that the [tex]\mathbf{\hat p}[/tex], [tex]\mathbf{\hat p_B}[/tex], [tex]\mathbf{\hat p_C}[/tex] and therefore [tex]\hat p_B - \hat p_C[/tex] are not

associated with a unit.

Therefore;

The correct option is; E. There are no units associated with the mean of the sampling distribution.

Learn more here about sampling distribution of a sample proportion here:

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